阵列加入VS字符串连接 [英] Array Join vs String Concat

问题描述

哪种方法更快？

阵列加入：

  VAR str_to_split =A，B，C，D，E，F，G，H，I，J，K，L，M，N，O，P，Q， R，S，T，U，v，W，X，Y，Z;
变种myArray的= str_to_split.split（，）;无功输出= myarray.join（）;
 

---

字符串连接：

  VAR str_to_split =A，B，C，D，E，F，G，H，I，J，K，L，M，N，O，P，Q， R，S，T，U，v，W，X，Y，Z;
变种myArray的= str_to_split.split（，）;VAR输出=;
对于（VAR I = 0，LEN = myarray.length; I＆LT; LEN，我++）{
    输出+ = myArray的[I]
}
 

解决方案

字符串concatination是ECMAScript中更快。下面是我创建的告诉你一个风向标：

<一个href=\"http://jsperf.com/array-join-vs-string-connect\">http://jsperf.com/array-join-vs-string-connect

Which method is faster?

Array Join:

var str_to_split = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
var myarray = str_to_split.split(",");

var output=myarray.join("");

---

String Concat:

var str_to_split = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
var myarray = str_to_split.split(",");

var output = "";
for (var i = 0, len = myarray.length; i<len; i++){
    output += myarray[i];
}

解决方案

String concatination is faster in ECMAScript. Here's a benchmark I created to show you:

http://jsperf.com/array-join-vs-string-connect

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