How to use regular expression to replace newline characters in javascript

Regular method of replacing newline characters: 1. Use the replace() function, the syntax is "String object.replace(/[\r\n]/g,'replacement value')"; 2. Use replaceAll () function, syntax "string object.replaceAll(/[\r\n]/g,'replacement value')".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

javascript regular replacement of newlines

Method 1: Use the replace() function

replace The () method is used to replace some characters with other characters in a string, or replace a substring that matches a regular expression.

Example:

let a = '\n换行个阿斯蒂芬\r换行个阿斯蒂芬ABCD';
console.log(a);
let b = a.replace(/[\r\n]/g,'');
console.log(b);

Method 2: Use replaceAll() function

replaceAll() method is used Replace some characters with other characters in a string, or replace a substring that matches a regular expression. This function will replace all matching substrings.

let a = '换行个阿斯蒂芬\r\n换行个阿斯蒂芬\nABCD';
console.log(a);
let b = a.replaceAll(/[\r\n]/g,'！');
console.log(b);

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