The ignoreCase attribute in the JavaScript regular expression USES detail

2020-06-15 07:37:38
OfStack

ignoreCase is a read-only Boolean property of a regular expression object. It specifies whether a particular regular expression performs a case-insensitive match. , which is created with the "i" attribute.
grammar


RegExpObject.ignoreCase

Here is the details of the parameters:

The return value:

Return "TRUE" if "i" modification is set, otherwise return "FALSE".

Example:


<html>
<head>
<title>JavaScript RegExp ignoreCase Property</title>
</head>
<body>
<script type="text/javascript">
  var re = new RegExp( "string" );

  if ( re.ignoreCase ){
   document.write("Test1-ignoreCase property is set"); 
  }else{
   document.write("Test1-ignoreCase property is not set"); 
  }
  re = new RegExp( "string", "i" );

  if ( re.ignoreCase ){
   document.write("<br/>Test2-ignoreCase property is set"); 
  }else{
   document.write("<br/>Test2-ignoreCase property is not set"); 
  }
</script>
</body>
</html>

This will produce the following results:


Test1 - ignoreCase property is not set
Test2 - ignoreCase property is set