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JavaScript Tutorial >> JavaScript using String.

To help format text programmatically, JavaScript exposes several default JavaScript String methods and a single property for which the JavaScript String object commands, and all of which any text-containing JavaScript variable can directly access. The below example shoes how to set-up text string using JavaScript.

Example of String Methods in JavaScript

<script language="javascript">
var myString="Welcome at Global Guide Line! JavaScript Tutorial"
var format=myString.toUpperCase()
var size=1
//go through the myString, letter by letter with JavaScript for loop
for (i=0;i<myString.length;i++){
    document.write(format.charAt(i).fontsize(size).bold())
    if (size<7){
      size++
    }
    else{
      size=1
    }
}
</script>

Result for above Example of JavaScript with String Object.

String Object Formatting related properties & methods in JavaScript

JavaScript String Property Names	Description of JavaScript String Property
length	Length property of JavaScript String Object returns the total number of characters of any string.

JavaScript String Methods Names	Description of JavaScript String Methods
anchor(name)	anchore() Method of JavaScript String returns the string with the tag <A name="name"> surrounding it.
big()	big() Method of JavaScript String returns the string with the tag <BIG> surrounding it.
blink()	blink() Method of JavaScript String returns the string with the tag <BLINK> surrounding it.
bold()	bold() Method of JavaScript String returns the string with the tag <B> surrounding it.
fixed()	fixed() Method of JavaScript String returns the string with the tag <TT> surrounding it.
fontcolor(color)	fontcolor() Method of JavaScript String returns the string with the tag <FONT color="color"> surrounding it. .
fontsize(size)	fontsize() Method of JavaScript String returns the string with the tag <FONT size="size"> surrounding it.
italics()	italics() Method of JavaScript String returns the string with the tag <I> surrounding it.
link(url)	link() Method of JavaScript String returns the string with the tag <A href="url"> surrounding it.
small()	small() Method of JavaScript String returns the string with the tag <SMALL> surrounding it.
strike()	strike() Method of JavaScript String returns the string with the tag <STRIKE> surrounding it.
sub()	sub() Method of JavaScript String returns the string with the tag <SUB> surrounding it.
sup()	sup() Method of JavaScript String returns the string with the tag <SUP> surrounding it.
toLowerCase()	toLowerCase() Method of JavaScript String returns the string with all of its characters converted to lowercase.
toUpperCase()	toUpperCase() Method of JavaScript String returns the string with all of its characters converted to uppercase.

Concatenate different JavaScript Strings.

<script type="text/javascript">

var arr = new Array(3)
arr[0] = "Global"
arr[1] = "Guide"
arr[2] = "Line"
arr[3] = " >> "
arr[4] = "JavaScript"
arr[5] = "Tutorial"

document.write(arr.join(" ") + "<br/>")
document.write(arr.join() + "<br />")
document.write(arr.join(".") + "<br/>")

</script>

Out put of concatenate different JavaScript Strings example

Example of String Complete Functions in JavaScript

<script type="text/javascript">
var string="JavaScript String Functions Example in JavaScript Tutorial!"

document.write("<p>Big: " + string.big() + "</p>")
document.write("<p>Small: " + string.small() + "</p>")

document.write("<p>Bold: " + string.bold() + "</p>")
document.write("<p>Italic: " + string.italics() + "</p>")

document.write("<p>Blink: " + string.blink() + " (does not work in IE)</p>")
document.write("<p>Fixed: " + string.fixed() + "</p>")
document.write("<p>Strike: " + string.strike() + "</p>")

document.write("<p>Fontcolor: " + string.fontcolor("Red") + "</p>")
document.write("<p>Fontsize: " + string.fontsize(16) + "</p>")

document.write("<p>Lowercase: " + string.toLowerCase() + "</p>")
document.write("<p>Uppercase: " + string.toUpperCase() + "</p>")

document.write("<p>Subscript: " + string.sub() + "</p>")
document.write("<p>Superscript: " + string.sup() + "</p>")
document.write("<p>Its Link: " + string.link("https://www.GlobalGuideLine.com") + "</p>")

</script>

Out put of all JavaScript String Functions.

JavaScript String Object Functions and Properties Examples

►Example of string.charAt(int) Function using String Object
►Example of JavaScript string.indexOf(str) Function
►Example of JavaScript string.lastIndexOf(str) Function
►Example of JavaScript string.subString(start, end) Function
►Example of JavaScript string.length Property
►Example of Complete String Functions and Properties in JavaScript

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