JavaScript 连接字符串

记录:

1、用连接符“+”:

str="a";

str+="b";


2、以数组作为中介用 join:

vararr=new Array();

arr.push(a);

arr.push(b);varstr=arr.join("");

或者:

var sArr = ["long"," time"," no"," see"];

sArr.join("");


3、利用对象属性来连接字符串:

function stringConnect(){

    this._str_=new Array();

}

stringConnect.prototype.append=function(a){

    this._str_.push(a);

}

stringConnect.prototype.toString=function(){

    returnthis._str_.join();

}

    varmystr=new stringConnect;

    mystr.append("a");

    varstr=mystr.toString();


4、concat() 方法:

var str1 ="aa"

var str2 ="bb"

var str3 ="cc"

var str = str1.concat(str2,str3);

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