Slicing a String : String : Language Basics : JavaScript DHTML examples (example source code) Organized by topic




/*

JavaScript Bible, Fourth Edition

by Danny Goodman 



Publisher: John Wiley & Sons CopyRight 2001

ISBN: 0764533428

*/



<HTML>

<HEAD>

<TITLE>String Slicing and Dicing, Part I</TITLE>

<SCRIPT LANGUAGE="JavaScript">

var mainString = "Electroencephalograph"

function showResults() {

    var form = document.forms[0]

    var param1 = parseInt(form.param1.options[form.param1.selectedIndex].value)

    var param2 = parseInt(form.param2.options[form.param2.selectedIndex].value)

    if (!param2) {

        form.result1.value = mainString.slice(param1)

    } else {

        form.result1.value = mainString.slice(param1, param2)

    }

}

</SCRIPT>

</HEAD>

<BODY onLoad="showResults()">

<B>String slice() Method</B>

<HR>

Text used for the methods:<BR>

<FONT SIZE=+1><TT><B>Electroencephalograph<BR>

----5----5----5----5-</B></TT></FONT>

<TABLE BORDER=1>

<FORM>

<TR><TH>String Method</TH><TH>Method Parameters</TH><TH>Results</TH></TR>

<TR>

<TD>string.slice()</TD><TD ROWSPAN=3 VALIGN=middle>

(&nbsp;<SELECT NAME="param1" onChange="showResults()">

    <OPTION VALUE=0>0

    <OPTION VALUE=1>1

    <OPTION VALUE=2>2

    <OPTION VALUE=3>3

    <OPTION VALUE=5>5

</SELECT>,

<SELECT NAME="param2" onChange="showResults()">

    <OPTION >(None)

    <OPTION VALUE=5>5

    <OPTION VALUE=10>10

    <OPTION VALUE=-1>-1

    <OPTION VALUE=-5>-5

    <OPTION VALUE=-10>-10

</SELECT>&nbsp;) </TD>

<TD><INPUT TYPE="text" NAME="result1" SIZE=25></TD>

</TR>

</FORM>

</TABLE>

</BODY>

</HTML>


1. Demo all String methods
2. String utility: word count, replace and capitalize
3. Strip Commas
4. Text Range Search and Replace (IE only)
5. Counting the Words in a Text String
6. Reversing a String
7. Trimming a String Using Regular Expressions
8. String encode and decode
9. Capitalizing the First Letter in Each Word of a String
10. Playing with Strings
11. Using the String Object's Link Method
12. Using a for Loop to Reverse a String
13. Concatenate JavaScript String
14. String length: number of characters in a string.
15. String fontcolor(): a string in a specified color
16. String indexOf(): string position
17. String Validation
18. Using Quotes within Strings
19. Using the String Object
20. String toUpperCase
21. Lab for string.replace() and string.search()
22. A String Object Prototype
23. Creating a Custom toString() Method
24. Reading a Portion of a String
25. Source Code for a Sample Page That Formats a String Object with the 'a' Tag
26. Source Code for Our String-Formatting Script
27. Adding a replace() Method to the String Object
28. Creating a Function That Will Search and Replace in Strings
29. Using the indexOf() Method to Find All Occurrences of the Letter e in a Sentence
30. Methods and Properties of the String Object
31. Using the indexOf() Method to Find All Occurrences of the Letter e in a Sentence
32. String match(): returns the text if found
33. String substr() and substring(): returns a specified part of a string
34. String toLowerCase() and toUpperCase(): converts a string to lowercase and uppercase
35. Converting Strings to Upper Case
36. String encoder