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Example of how JavaScript uses regular expressions to obtain all grouped contents

高洛峰Original: 2017-01-20 14:00:111274browse

The example in this article describes how JavaScript uses regular expressions to obtain all grouped contents. Share it with everyone for your reference, the details are as follows:

1. Need to use regular expression exec

2. Need to loop

DEMO example: (The following code will output 8 , 9. Two matched group contents)

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JS正则demo</title>
</head>
<body>
<script>
var r = /\{ab(\d)ab}/g;
while ((resultS2 = r.exec("ab{ab8ab}c{ab9ab}")) != null) {
  console.log(resultS2[1]);
} 
</script>
</body>
</html>

The running effect diagram is as follows:

Example of how JavaScript uses regular expressions to obtain all grouped contents

I hope this article will be helpful to everyone’s JavaScript programming. .

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