JavaScript | 字符串repeat()方法 (JavaScript | String repeat() Method)

The String.repeat() method in JavaScript is used to generate a string by repeating the calling string n number of times. n can be any integer from o to any possible number in JavaScript.

JavaScript中的String.repeat()方法用于通过将调用字符串重复n次来生成字符串。 n可以是从o到JavaScript中任何可能数字的任何整数。

Syntax:

句法：

String.repeat(n);

Parameter(s):

参数：

The method accepts one parameter which is the number of times a number is repeated.

该方法接受一个参数，该参数是重复数字的次数。

Return value:

返回值：

The return type of this method is string which is the result of the repeating the strings.

此方法的返回类型是string ，这是重复字符串的结果。

Browser support: Chrome, Internet explorer, Mozilla, Safari, Opera mini.

浏览器支持： Chrome，Internet Explorer，Mozilla，Safari，Opera mini。

Example:

例：

str = "IncludeHelp"//"IncludeHelp"str.repeat(3)//"IncludeHelpIncludeHelpIncludeHelp"str.repeat(0)//""str.repeat(str.length)//"IncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelpIncludeHelp"str.repeat(-1)/*VM424:1 Uncaught RangeError: Invalid count value    at String.repeat (<anonymous>)    at <anonymous>:1:5*/

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