JavaScript

Re: OK, Javascript gurus, why is "if" not evaluating as true or false ?

14hrs 13mins ago

I can't reproduce the problem. Given:

var result = $(" ... ").length > 0;
alert(typeof result);
alert(result);

the code displays "boolean" and "true".

What output do you get if you try:

var result = ($(e.target).parents('.jqx-tree').length > 0);
alert(typeof result);
alert(result);
return result;

As a last resort, there's always the "!!" trick to convert to a boolean value:

return !!($(e.target).parents('.jqx-tree').length > 0);

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Marc Clifton11hrs 24mins ago

Marc Clifton

11hrs 24mins ago

Yeah, it looked like a boolean to me too!

!! didn't work, but SO provided what I think is a better solution anyways:

        function disableBrowserContextMenu() {
            $(document).on('contextmenu', function (e) {
                if ($(e.target).parents('.jqx-tree').length > 0) {
                    e.preventDefault()
                }
            });
        }

Note the e.preventDefault(). Somehow, the explicit return true/false must have been doing this behind the scenes, I'm wildly guessing.

Marc

Imperative to Functional Programming Succinctly

Contributors Wanted for Higher Order Programming Project!

Re: OK, Javascript gurus, why is "if" not evaluating as true or false ?

Richard Deeming11hrs 16mins ago

Re: OK, Javascript gurus, why is "if" not evaluating as true or false ?

11hrs 16mins ago

In jQuery event handlers, return false; should be directly equivalent to e.preventDefault(); e.stopPropagation();, and usually works to cancel an event. Having said that, e.preventDefault() is the preferred way to stop the event.

The difference between ‘return false;’ and ‘e.preventDefault();’[^]
jQuery Events: Stop (Mis)Using Return False[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Marc Clifton10hrs 54mins ago

Marc Clifton

10hrs 54mins ago

Richard Deeming wrote:
In jQuery event handlers,

Heh, this is what happens when a noob (which I still consider myself) starts doing Javascript. Good to know, and thank you for the great info!

Marc

Imperative to Functional Programming Succinctly

Contributors Wanted for Higher Order Programming Project!

Re: OK, Javascript gurus, why is "if" not evaluating as true or false ?

Afzaal Ahmad Zeeshan10hrs 43mins ago

Afzaal Ahmad Zeeshan

10hrs 43mins ago

I didn't know that !! operator. Thanks. Wink | ;-)

Removed irrelevant content

The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~

Need to get client system date and time format

pk.pradeep28-Jul-15 4:07

pk.pradeep

28-Jul-15 4:07

We need to get client system date and time format. At present in our application we have requirement when user login into the application they have to see the date and time format as his local PC date and time format setting.
For example he is accessing the site form the then he able to see exact his local system date and time format instead of server format.
We tried this approach by using. date.toLocaleDateString() but this is returning the current local system date instead of format. Even this date.toLocalDateString() is behaving differently in different browsers.

So, please assist me how to get exact customize date and time format of client system.
Example: like (dd/MM/yyyy hh:mm, MM/dd/yyyy hh:mm and so on).
Please see this link what i am expecting
http://screencast.com/t/wgrgvHmDrY[^]

Thanks

Display data from SQL database to HTML page in table format using Angular JS

tukaiB27-Jul-15 0:38

tukaiB

27-Jul-15 0:38

Hi,

I want to fetch data from SQL database, and display the same on my HTML page in table format using Angular JS.

I am able to get the data in the scope variable, but it is not getting displayed in the HTML page.

Please check the code that I have written below, and help me fixing the issue.

Thanks in advance.

HTML code:

<!DOCTYPE html>

<html>

<head>

<title>:: View Logs ::</title>

<script src="Scripts/angular.js"></script>
<script src="Scripts/angular.min.js"></script>



<script src="Scripts/logsController.js"></script>
<script src="Scripts/jquery-2.1.1.js"></script>
<script src="Scripts/jquery-2.1.1.min.js"></script>



</head>

<body>

Log ID	User Type	User Name	Email ID	Action Type	Section Name	Section Details	DateTime	User IP
{{item.LogID}}	{{item.UserType}}	{{item.UserName}}	{{item.EmailID}}	{{item.ActionType}}	{{item.SectionName}}	{{item.SectionDetails}}	{{item.DateTime}}	{{item.UserIP}}

</body>

</html>

logsController.js code:

angular.module('ViewLogsApp', [])
.controller('ViewLogsController', [
'$scope', function ($scope) {

$scope.logslist = [];

$scope.load;

$scope.load = function () {

$.ajax({
type: 'GET',
contentType: 'application/json; charset=utf-8',
url: 'UserActivityLogs.aspx/getList',
success: function (data) {
$scope.logslist = data
$scope.$apply();
}
});
}
$scope.load();

}
]);

WebMethod code:

[System.Web.Services.WebMethod]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
public static List getList()
{
SqlConnection con = new SqlConnection();

con.ConnectionString = _connstr;
con.Open();

var logs = new List();

string get = "select * from UserActivityLogs";
//string get = "sp_employee";

SqlCommand cmd = new SqlCommand(get, con);

SqlDataReader dr = cmd.ExecuteReader();

while (dr.Read())
{
UserActivityLogsList e = new UserActivityLogsList();

e.LogID = Convert.ToInt32(dr[0]);
e.UserType = Convert.ToString(dr[1]);
e.UserName = Convert.ToString(dr[2]);
e.EmailID = Convert.ToString(dr[3]);
e.ActionType = Convert.ToString(dr[4]);
e.SectionName = Convert.ToString(dr[4]);
e.SectionDetails = Convert.ToString(dr[4]);
e.DateTime = Convert.ToString(dr[4]);
e.UserIP = Convert.ToString(dr[4]);

logs.Add(e);

}

con.Close();

return logs;

}

Clouds come floating into my life, no longer to carry rain or usher storm, but to add color to my sunset sky. ~Rabindranath Tagore

Re: Display data from SQL database to HTML page in table format using Angular JS

mohammad hasnain raza28-Jul-15 1:21

mohammad hasnain raza

28-Jul-15 1:21

Try to display the data of single column first.

{{log.LogID}}

To make sure if you are really getting your data at javaScript level and to make sure if your $scope is really working fine first try this snippet in your html. If it works than try all columns.

If it does not work than try this in your html and body tags
<html ng-app="ViewLogsApp"></html>
and
<body ng-controller="ViewLogsController"></body>

hopefully it would work....cheers

Sometimes I make something simple into something difficult

Member 1183686426-Jul-15 7:38

Member 11836864

26-Jul-15 7:38

Just a rhetorical question...but sometimes when I'm looking for the correct code, things get so convoluted! When I figure it out, like how to stop a timer with the clear interval...face palm! It was so easy! I feel like there is something missing from my understanding or just my novice status, needing more experience. Thanks all for listening/reading my "moment".

Re: Sometimes I make something simple into something difficult

mohammad hasnain raza28-Jul-15 1:26

mohammad hasnain raza

28-Jul-15 1:26

What was the issue you found by yourself.... let me check if our understanding matches with you.... Poke tongue | ;-P

Creating an array of graphic files...

Rayj201025-Jul-15 7:31

Rayj2010

25-Jul-15 7:31

I want to create an array containing graphic GIF files (or pointers to the files) such that I can access and show the file with: document.write(array[gif1]);

I am new at Javascript. If there is something better than document.write, I'm open for suggestions.

Thanks,

Ray

Changing the last text of a loop

Member 1184968824-Jul-15 4:53

Member 11849688

24-Jul-15 4:53

So right now my countdown loop goes "5,4,3,2,1,"

Is there a way to add something so that when it goes to 1 there is no more comma?

Thank you! I am taking my first Javascript class so I apologize if my question is very basic.

Re: Changing the last text of a loop

Richard MacCutchan24-Jul-15 5:40

Re: Changing the last text of a loop

24-Jul-15 5:40

Yes you can use loops if-else tests etc. See http://www.w3schools.com/js/default.asp[^], where you can test online.

RyanDev24-Jul-15 5:58

RyanDev

24-Jul-15 5:58

You would have to show us the code you are currently using to do this. But my guess is you are just adding "," to some variable that is being decremented. So, just check if your variable is 1 first and if so, don't add the ","

There are only 10 types of people in the world, those who understand binary and those who don't.

Re: Changing the last text of a loop

Anil Vaghasiya24-Jul-15 19:52

Anil Vaghasiya

24-Jul-15 19:52

Hello,
Just Check in Console it Works

var str,i,counter="";
for (i = 5 ; i >= 1; i--) {
 str =i+',';
  console.log(str);
  counter+=str;
}
console.log(counter.replace(/.$/,""));
//console.log(counter.substring(0,counter.length-1));

How do I make the Comment box conditional mandatory box? (SOLVED)

samflex23-Jul-15 8:20

samflex

23-Jul-15 8:20

Greetings again gurus,

We are building a survey app for users.

The intent is to allow users to provide a feedback on the experience using the app.

The survey has six (6) questions and a comment box

Each question has four (4) choices.

The choices are 4 (for Excellent), 3 (for Good), 2 (for Fair), and 1 (for Poor).

Our requirement is to make the comment box either optional or mandatory depending on user choices.

For instance, if a user marks a radio button as Excellent or Good, then the comment box is optional; user does not have to enter any comments.

If however, a user checks a radio button for Fair or Poor, then we would like to make the comment box mandatory.

This forces the user to explain why his/her choice is either Fair or Poor.

Any ideas how to modify the code to make comment box mandatory or optional based on user's responses to the survey questions?

Below is the markup I am working with.

Thanks a lot in advance.

<script type='text/javascript'>//<![CDATA[
$(window).load(function(){
$(document).ready(function () {
 
    $('#form1').validate({ // initialize the plugin
        rules: {
            dept: {
                required: true
            },
            location: {
                required: true
            },
            surveydate: {
                required: true
            },
            promptness: {
                required: true
            },
            timleycompletion: {
                required: true
            },
            courteousfriendly: {
                required: true
            },
            cleanworkarea: {
                required: true
            },
            issueresolved: {
                required: true
            },
            performance: {
                required: true
            }
 
        }
    });
 
});
});//]]>
</script>
</head>
<body>
<form action="phpservices/process.php" id="form1" name="form1" method="POST">
		<fieldset>
			<legend style="font-weight:bold;color:firebrick;">Brief Survey Questions</legend>
			<p style="font-weight:bold;color:#000000;">Promptness of response to service request:</p>
	        <div style="background:#ACD1E9;"><input type="radio" name="promptness" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="promptness" value="3"><label for="good">Good</label>
	         <input type="radio" name="promptness" value="2"><label for="fair">Fair</label>
             <input type="radio" name="promptness" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Completed the work in a timely manner:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="timleycompletion" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="timleycompletion" value="3"><label for="good">Good</label>
	         <input type="radio" name="timleycompletion" value="2"><label for="fair">Fair</label>
             <input type="radio" name="timleycompletion" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Courteous and friendly:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="courteousfriendly" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="courteousfriendly" value="3"><label for="good">Good</label>
	         <input type="radio" name="courteousfriendly" value="2"><label for="fair">Fair</label>
             <input type="radio" name="courteousfriendly" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Kept the work area neat and clean:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="cleanworkarea" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="cleanworkarea" value="3"><label for="good">Good</label>
	         <input type="radio" name="cleanworkarea" value="2"><label for="fair">Fair</label>
             <input type="radio" name="cleanworkarea" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Resolved the issue to my satisfaction:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="issueresolved" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="issueresolved" value="3"><label for="good">Good</label>
	         <input type="radio" name="issueresolved" value="2"><label for="fair">Fair</label>
             <input type="radio" name="issueresolved" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Rate the overall performance of services provided:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="performance" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="performance" value="3"><label for="good">Good</label>
	         <input type="radio" name="performance" value="2"><label for="fair">Fair</label>
             <input type="radio" name="performance" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:steelBLUE;"><label>Comment/Suggestion:</label></p>
			<p><textarea name="comments" rows="2" cols="50"></textarea></p>
 
           <input type="submit" value="Submit response >>" onClick="return validate(this.form);">
		</fieldset>
</form>
</body>
</html><script type='text/javascript'>//<![CDATA[
$(window).load(function(){
$(document).ready(function () {
 
    $('#form1').validate({ // initialize the plugin
        rules: {
            dept: {
                required: true
            },
            location: {
                required: true
            },
            surveydate: {
                required: true
            },
            promptness: {
                required: true
            },
            timleycompletion: {
                required: true
            },
            courteousfriendly: {
                required: true
            },
            cleanworkarea: {
                required: true
            },
            issueresolved: {
                required: true
            },
            performance: {
                required: true
            }
 
        }
    });
 
});
});//]]>
</script>
</head>
<body>
<form action="phpservices/process.php" id="form1" name="form1" method="POST">
		<fieldset>
			<legend style="font-weight:bold;color:firebrick;">Brief Survey Questions</legend>
			<p style="font-weight:bold;color:#000000;">Promptness of response to service request:</p>
	        <div style="background:#ACD1E9;"><input type="radio" name="promptness" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="promptness" value="3"><label for="good">Good</label>
	         <input type="radio" name="promptness" value="2"><label for="fair">Fair</label>
             <input type="radio" name="promptness" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Completed the work in a timely manner:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="timleycompletion" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="timleycompletion" value="3"><label for="good">Good</label>
	         <input type="radio" name="timleycompletion" value="2"><label for="fair">Fair</label>
             <input type="radio" name="timleycompletion" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Courteous and friendly:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="courteousfriendly" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="courteousfriendly" value="3"><label for="good">Good</label>
	         <input type="radio" name="courteousfriendly" value="2"><label for="fair">Fair</label>
             <input type="radio" name="courteousfriendly" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Kept the work area neat and clean:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="cleanworkarea" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="cleanworkarea" value="3"><label for="good">Good</label>
	         <input type="radio" name="cleanworkarea" value="2"><label for="fair">Fair</label>
             <input type="radio" name="cleanworkarea" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Resolved the issue to my satisfaction:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="issueresolved" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="issueresolved" value="3"><label for="good">Good</label>
	         <input type="radio" name="issueresolved" value="2"><label for="fair">Fair</label>
             <input type="radio" name="issueresolved" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:#000000;">Rate the overall performance of services provided:</p>
	         <div style="background:#ACD1E9;"><input type="radio" name="performance" value="4"><label for="excellent">Excellent</label>
	         <input type="radio" name="performance" value="3"><label for="good">Good</label>
	         <input type="radio" name="performance" value="2"><label for="fair">Fair</label>
             <input type="radio" name="performance" value="1"><label for="poor">Poor</label></div>
            
 

			<p style="font-weight:bold;color:steelBLUE;"><label>Comment/Suggestion:</label></p>
			<p><textarea name="comments" rows="2" cols="50"></textarea></p>
 
           <input type="submit" value="Submit response >>" onClick="return validate(this.form);">
		</fieldset>
</form>
</body>
</html>

modified 23-Jul-15 16:15pm.

Re: How do I make the Comment box conditional mandatory box?

Richard Deeming23-Jul-15 9:04

Re: How do I make the Comment box conditional mandatory box?

23-Jul-15 9:04

According to this answer on SO[^], you just need to use a dependency expression[^]:

comments: {
    required: "input:radio:checked[value='2'], input:radio:checked[value='1']"
}

The string value for the required rule is a jQuery selector which will be evaluated in the context of the form. The rule will only apply if the selector returns at least one element.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex23-Jul-15 9:14

samflex

23-Jul-15 9:14

Hi Richard again!

Nice, very nice clean solution but I would like to make a slight change to the question if you don't mind sir.

Since there are six total questions, is it possible to have comment box for each question?

By default, hide the comments box.

If the choices are either 1 or 2, then show the comment box and make it mandatory.

If the choice is 3 or 4 keep the box hidden.

Can call this comments box rcomments.

Then we just have one global comments box for additional comments the user may have.

Is this possible?

Thanks so much (again) for your help.

Re: How do I make the Comment box conditional mandatory box?

Richard Deeming23-Jul-15 9:34

Re: How do I make the Comment box conditional mandatory box?

23-Jul-15 9:34

Yes. You just need to set up a comment box for each question, with its own rule. The dependency expression would use the name of the radio buttons for the question - for example:

promptness-comments: {
    required: "input:radio:checked[name='promptness'][value='2'], input:radio:checked[name='promptness'][value='1']"
}

You'd then just need a script to monitor the click event of each radio-button, and show or hide the relevant comment box. How you find the relevant comment box for the clicked radio button is up to you - I'd be inclined to use a predictable ID:

<textarea id="promptness-comments" name="promptness-comments" rows="2" cols="50"></textarea>
...
<script>
$(document).ready(function () {
    ...
    $("#form1").on("click", "input:radio", function(){
        var group = this.name;
        var commentsId = "#" + group + "-comments";
        $(commentdId).toggle(this.value === "1" || this.value === "2");
    });
});
</script>

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex23-Jul-15 10:15

samflex

23-Jul-15 10:15

awesome, Richard.

Thanks very much.

how to add image in columns in datatables using jquery and json

Member 1185791223-Jul-15 3:56

Member 11857912

23-Jul-15 3:56

how to add image in columns in datatables using jquery and json

Re: how to add image in columns in datatables using jquery and json

RyanDev24-Jul-15 5:59

RyanDev

24-Jul-15 5:59

It requires a lot of code and will be different for everyone's situation. Where are you stuck?

There are only 10 types of people in the world, those who understand binary and those who don't.

Seeking Former Ford Employees

Member 1185572122-Jul-15 7:09

Member 11855721

22-Jul-15 7:09

Ford Motor Company is accused of stealing Versata's Automotive Configuration Management (ACM) software. Versata is currently investigating this matter and is seeking information from individuals that formerly worked at Ford Motor Company on either the ACM program or on the replacement program called Product Definition Offering (PDO). If you previously worked on either one of these programs we would like to hear from you on a confidential basis at [email protected].

We very much appreciate your response and are eager to hear from you.

Message Automatically Removed

22-Jul-15 0:03

Fourblack

22-Jul-15 0:03

Message Automatically Removed

22-Jul-15 0:02

Fourblack

22-Jul-15 0:02

Message Automatically Removed

If ... Else If ... Else statements

Member 1184785021-Jul-15 18:41

Member 11847850

21-Jul-15 18:41

I am sorry for the very basic question, but I don't have a reference book. Can you have more than one "Else if " statement in case you needed to make more than 2 comparisons to the same item?

Re: If ... Else If ... Else statements

Brisingr Aerowing21-Jul-15 19:24

Brisingr Aerowing

21-Jul-15 19:24

Yes, you can.

You may also want to look at the switch statement[^] as well.

What do you get when you cross a joke with a rhetorical question?

The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.

Do questions with multiple question marks annoy you???

Re: If ... Else If ... Else statements

Richard MacCutchan21-Jul-15 20:32

Simple Ajax program will not work

21-Jul-15 20:32

Member 11847850 wrote:
I don't have a reference book

You don't need one, nearly all documentation[^] is online.

Truck5321-Jul-15 15:36

Truck53

21-Jul-15 15:36

Could anyone let me know why my ajax program will not work? The code is below:

<!DOCTYPE html>
<html>
<head>
<script language = "javascript">
 
var XMLHttpRequestObject = false;
	if(window.XMLHttpRequest)
	{
		XMLHttpRequestObject - new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHttp");
	}
function getData(dataSource, divID)
{
 
	
	
	if(XMLHttpRequestObject)
	{
	var obj = document.getElementById(divID)
		XMLHttpRequestObject.open("GET", dataSource);
		
		XMLHttpRequestObject.onreadystatechange = function()
		{
			if(XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200)
			{
				obj.innerHTML = XMLHttpRequestObject.responseText;
			}
			else
			{
				obj.innerHTML = Waitning for response...
			}
		}
		XMLHttpRequestObject.send(null);
	}
	
}
</script>

Thanks,
Truck35

Re: Simple Ajax program will not work

Peter Leow21-Jul-15 16:21

Peter Leow

21-Jul-15 16:21

Add a 'divID' in the body, e.g.

<div id="divID"></div>

Re: Simple Ajax program will not work

Truck5322-Jul-15 0:13

Truck53

22-Jul-15 0:13

I added the "divID" to the id attribute of the div tag and my program still will not work. If anyone has any ideas why, please let me know.

The modified code is below:

<!DOCTYPE html>
<html>
<head>
<script language = "javascript">
 
var XMLHttpRequestObject = false;
	if(window.XMLHttpRequest)
	{
		XMLHttpRequestObject - new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHttp");
	}
function getData(dataSource, divID)
{
 
	
	
	if(XMLHttpRequestObject)
	{
	var obj = document.getElementById(divID)
		XMLHttpRequestObject.open("GET", dataSource);
		
		XMLHttpRequestObject.onreadystatechange = function()
		{
			if(XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200)
			{
				obj.innerHTML = XMLHttpRequestObject.responseText;
			}
			else
			{
				obj.innerHTML = Waitning for response...
			}
		}
		XMLHttpRequestObject.send(null);
	}
	
}
</script>

Thanks,
Truck53

Re: Simple Ajax program will not work

F-ES Sitecore22-Jul-15 0:44

F-ES Sitecore

22-Jul-15 0:44

change

obj.innerHTML = Waitning for response...
to

obj.innerHTML = "Waitning for response...";

use the dev tools of your browser, or a tool like Fiddler, to examine the network traffic. So if the request is being made and if so what its return status is. Maybe it's 404? or 500? We can't access your system so don't know.

To convert audio file into byte array in javascript

Rohan Jadhav20-Jul-15 6:02

Rohan Jadhav

20-Jul-15 6:02

Hello i am having an mp3 file i want to convert that audio file in byte array and send it to the server please let me know how i can do it

How to shorten/combine "if()" statements?

Member 1184968820-Jul-15 4:58

Member 11849688

20-Jul-15 4:58

Is there a way to shorten or combine if() statements?

Currently I have if age<21 there is an alert, then else if age>21 there is an alert, another else if age==21 alert, and an else alert.

Is there a way to combine age<21, age>21, age==21 into one statement with their individual alerts?

Thanks, I am taking my first Javascript class right now.

Member 1185045020-Jul-15 13:18

Member 11850450

20-Jul-15 13:18

use case/switch statement

switch (true) {
case (age == 21):
        alert(" equal");
        break;
    case (age> 21):
        alert(" older");
        break;
    case (age < 21):
        alert("younger");
        break;}

Godhaniketan20-Jul-15 19:24

20-Jul-15 19:24

<script>
        function myfun() {
            var age = 21; //change value of age and check it.
            (age < 21) ? alert('less than 21') : (age > 21) ? alert('greater than 21') : (age == 21) ? alert('equl 21') : alert('else part');
        }
    </script>

It's give you result 100% with single line.
Smile | :)

Richard MacCutchan20-Jul-15 20:50

20-Jul-15 20:50

The third expression "age == 21" is redundant. If it is not less than and not greater than then there is only one other value it can have.

Message Removed

Godhaniketan20-Jul-15 21:32

20-Jul-15 21:32

Message Removed

modified 21-Jul-15 6:22am.

Richard MacCutchan20-Jul-15 21:37

20-Jul-15 21:37

Godhaniketan wrote:
Hello Richard MacCutchan,

I think you have not tested well in my case it's worked fine. i think you should have to check again.
if any doubt then reply me.

just change value of age like 19,21,22 and 'blah..' it gives you all kind of alert..please try it out.

Well I guess you do not understand that simple statement only requires two if parts.
If age is less than 21 : Alert1
If age is greater than 21 : Alert2
Else: age must be equal to 21, so the test for equality is not needed.

modified 21-Jul-15 9:22am.

Message Removed

Godhaniketan20-Jul-15 21:50

20-Jul-15 21:50

Message Removed

modified 21-Jul-15 6:22am.

Richard MacCutchan20-Jul-15 21:53

20-Jul-15 21:53

Godhaniketan wrote:
Hello Richard MacCutchan,
have you read question of "Member 11849688" he written clearly that "else if age==21 alert" that means he/she wants alert on equality condition also.
please read out the question properly.

he/she want 4 alert <, >, ==, else part.

Yes, and that is what my logic provided. If you really cannot understand simple boolean expressions then ...

modified 21-Jul-15 9:23am.

Godhaniketan20-Jul-15 21:55

20-Jul-15 21:55

Yes i understand your logic..
i will remove redundancy.
thanks

Richard MacCutchan21-Jul-15 3:37