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PHP中的str_repeat函数在JavaScript中的实现

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Release: 2016-06-13 12:47:36
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PHP中有一个函数:String str_repeat($str, num);挺好用的....以下通过js和php模拟实现。

1:PHP版本

复制代码 代码如下:


/*PHP版实现*/
function repeat($str, $num){
return implode( $str, array_fill(0, $num+1, '') );
}


2:JavaScript实现:

复制代码 代码如下:


/*JavaScript实现*/
function repeat(str, num){
return new Array( num + 1 ).join( str );
}

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