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()方法用于通過將調用字符串重復n次來生成字符串。 n可以是從o到JavaScript中任何可能數字的任何整數。

Syntax:

句法：

String.repeat(n);

Parameter(s):

參數：

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

該方法接受一個參數，該參數是重復數字的次數。

Return value:

返回值：

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

此方法的返回類型是string ，這是重復字符串的結果。

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

瀏覽器支持： 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 valueat String.repeat (<anonymous>)at <anonymous>:1:5 */

翻譯自: https://www.includehelp.com/code-snippets/string-repeat-method-with-example-in-javascript.aspx

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