How to use JavaScript lastIndex Property
This article describe about JavaScript lastIndex Property.
JavaScript lastIndex Property
This property define the index at which to start the next match.
Note: If "g" modifier set then work this property.
For define character position this property return the an integer immediately after the last match found by exec( ) or test( ) methods.
Note: set lastIndex to 0 by exec() and test() if they do not get a match
.
Syntax
Example
|
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
var str = "The boy climbed on The wall.";
var pattern = /The/g;
while (pattern.test(str) == true) {
document.write("'The' found. Index now at: " + pattern.lastIndex);
document.write("<br />");
}
</script>
</body>
</html>
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Output
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