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How to use the split function in JavaScript

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Dec 11, 2018 pm 05:39 PM

split function

The How to use the How to use the split function in JavaScript function in JavaScript function in JavaScript can use regular expression rules to How to use the How to use the split function in JavaScript function in JavaScript various patterns. The basic syntax of this function is "string.How to use the How to use the split function in JavaScript function in JavaScript (separator)".

How to use the split function in JavaScript

The operating environment of this article: Windows 7 system, Dell G3 computer, javascript version 1.8.5.

When creating a program, sometimes it is necessary to How to use the How to use the split function in JavaScript function in JavaScript the string into arrays. At this time, we can use the How to use the How to use the split function in JavaScript function in JavaScript function to achieve this. The How to use the How to use the split function in JavaScript function in JavaScript function can How to use the How to use the split function in JavaScript function in JavaScript the string using the specified delimiter.

Array is a type that can process multiple data together. In addition, regular expression rules can be used in the How to use the How to use the split function in JavaScript function in JavaScript function to How to use the How to use the split function in JavaScript function in JavaScript various modes.

In actual development, strings of dividing lines and label segments are often used as data processing.

Specific usage of How to use the How to use the split function in JavaScript function in JavaScript function

The basic syntax is as follows, add "." after the target string.

字符串.How to use the How to use the split function in JavaScript function in JavaScript（分隔符）

Specific example of How to use the How to use the split function in JavaScript function in JavaScriptting a string using the How to use the How to use the split function in JavaScript function in JavaScript function

Let’s implement a simple function first

The code is as follows

<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title></title> 
</head>
<body>
<script>
// How to use the How to use the split function in JavaScript function in JavaScript的示例１
      var shuzi = "10,20,30,40,50";
      var fengefu = ",";
      var array_shuzi = shuzi.How to use the How to use the split function in JavaScript function in JavaScript(fengefu);
      console.log(array_shuzi);

      // How to use the How to use the split function in JavaScript function in JavaScript的示例２
      var words = "Hello my name is Tom";
      var fengefu = /\s+/;
      var array_words = words.How to use the How to use the split function in JavaScript function in JavaScript(fengefu);
      console.log(array_words);
</script>
</body>
</html>

The running results are as follows

How to use the How to use the How to use the split function in JavaScript function in JavaScript function in JavaScript

Let’s analyze the above example carefully

Code

var shuzi = "10,20,30,40,50";
var fengefu = ",";
var array_shuzi = shuzi.How to use the How to use the split function in JavaScript function in JavaScript(fengefu);
console.log(array_shuzi);

Analysis

This is an example of basic string How to use the How to use the split function in JavaScript function in JavaScriptting.

Prepare a variable named "shuzi", which contains the string "10,20,30,40,50" and a variable named "fengefu", which contains the delimiter ",".

In How to use the How to use the split function in JavaScript function in JavaScriptting, the string "10,20,30,40,50" is divided into arrays by "," and put into the variable "array_shuzi".

As a result, the contents of the array are output as follows.

How to use the How to use the split function in JavaScript function in JavaScript

How to use the How to use the split function in JavaScript function in JavaScript function specifies the number to be How to use the How to use the split function in JavaScript function in JavaScript

Code

var shuzi = "10,20,30,40,50";
var fengefu = ",";
var array_shuzi = shuzi.How to use the How to use the split function in JavaScript function in JavaScript(fengefu,2);
console.log(array_shuzi);

Prepare a variable named "shuzi" which contains the string "10,20,30,40,50" and a variable named "fengefu" which contains the delimiter ",".

In How to use the How to use the split function in JavaScript function in JavaScript, the string "10,20,30,40,50" is divided into arrays by ",", but the number "2" is specified in the "fengefu,2" part. After How to use the How to use the split function in JavaScript function in JavaScriptting, put it into the variable "array_shuzi".

The contents of the result array are output as follows.

How to use the How to use the split function in JavaScript function in JavaScript

Using regular expressions to How to use the How to use the split function in JavaScript function in JavaScript in the How to use the How to use the split function in JavaScript function in JavaScript function

Code

var words = "Hello my name is Tom";
var fengefu = /\s+/;
var array_words = words.How to use the How to use the split function in JavaScript function in JavaScript(fengefu);
console.log(array_words);

Analysis

The following is an example of using a rule called a regular expression. By writing "/\s/" it means "one or more consecutive whitespaces". In this case, spaces are treated as one separator regardless of how many consecutive characters there are.

There is a variable called "words", which contains the string "Hello my name is Tom", and also provides a variable called "fengefu" assigned to "/\s /", which means "one character Or multiple consecutive blanks"

In How to use the How to use the split function in JavaScript function in JavaScript, the string "Hello my name is Tom" is divided into arrays by "/\s /", and finally put into the variable "array_words"

The result , the contents of the array are output as follows.

How to use the How to use the split function in JavaScript function in JavaScript

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