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A brief introduction to the use of the test() method in JavaScript regular expressions_Basic knowledge

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Release： 2016-05-16 15:54:44

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The test method is a text search string matched by a regular expression. Returns true if a match is found; false otherwise.
Grammar

RegExpObject.test( string );

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Here are the details of the parameters:

string : The string to search for

Return value:

If a match is found, returns the matching text if not empty.

Example:

<html>
<head>
<title>JavaScript RegExp test Method</title>
</head>
<body>
<script type="text/javascript">
  var str = "Javascript is an interesting scripting language";
  var re = new RegExp( "script", "g" );

  var result = re.test(str);
  document.write("Test 1 - returned value : " + result); 

  re = new RegExp( "pushing", "g" );
  var result = re.test(str);
  document.write("<br />Test 2 - returned value : " + result); 
</script>
</body>
</html>

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This will produce the following results:

Test 1 - returned value : true
Test 2 - returned value : false

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Related labels：

javascript test

source：php.cn

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