I have a string like
var test="ALL,l,1,2,3";
How to remove ALL from string if it contains using javascript.
Regards,
Raj
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5 Answers
you can use js replace() function:
http://www.w3schools.com/jsref/jsref_replace.asp
so:
test.replace("ALL,", "");
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how about providing an example? It wouldn't take long and make your answer much more useful.meouw– meouw03/14/2011 15:38:27Commented Mar 14, 2011 at 15:38
If the word All can appear anywhere or more than once (e.g. "l,1,ALL,2,3,ALL") then have such code:
var test = "l,1,ALL,2,3,ALL"
var parts = test.split(",");
var clean = [];
for (var i = 0; i < parts.length; i++) {
var part = parts[i];
if (part !== "ALL")
clean.push(part);
}
var newTest = clean.join(",");
After this the variable newTest will hold the string without ALL.
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Use strict equality.
if (part !== "ALL")Matt Ball– Matt Ball03/14/2011 16:05:57Commented Mar 14, 2011 at 16:05 -
@Matt what are the advantages of this, if I may ask?user447356– user44735603/14/2011 16:08:14Commented Mar 14, 2011 at 16:08
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The strict equality operator (
===) does not perform type coercion if the operand types are different, is generally "good practice", and is a teeny bit faster. See [this question]( stackoverflow.com/questions/359494) for more.Matt Ball– Matt Ball03/14/2011 16:32:34Commented Mar 14, 2011 at 16:32 -
1@Matt cheers, I'm convinced. For those reading the comments, the most simple example is
alert(5 == "5")vs.alert(5 === "5")- the first returns true as the type doesn't matter so JS is converting types by itself while the second will show false as the values are of different types. In this casesplit()returns array of strings so the type is guaranteed to be the same. :)user447356– user44735603/15/2011 08:08:13Commented Mar 15, 2011 at 8:08
If all you want to do is remove occurrences of the string "ALL" from another string, you can use the JavaScript String object's replace method:
test.replace("ALL","");
I'm not really sure if you want to remove all instances of capital letters from your string, but you are probably looking at using a regular expression such as s.replace(/[A-Z]/g,"") where s is the string.
Looking up javascript RegExp will give more indepth details.
use:
test.replace ( 'ALL,', '' );
