1、split(separator,limit)字符串分割成字符串?dāng)?shù)組
-
separator可選，從該參數(shù)指定的地方分隔 -
limit可選，返回?cái)?shù)組的長(zhǎng)度
var str = "How are you";
var a = str.split(); //["How are you"]
var b = str.split(""); //["H", "o", "w", " ", "a", "r", "e", " ", "y", "o", "u"]
var c = str.split(" "); //["How", "are", "you"]
var d = str.split(" ",2); //["How", "are"]
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