PHP中的str_repeat函数在JavaScript中的实现_php技巧

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Release: 2016-05-17 08:55:19
Original
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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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source:php.cn
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