js中有["1","2","3","4"]这样一个string,怎么把它变成array_百度...答:通过eval把字符串转换成array.代码:var str = '["1","2","3","4"]';//相关字符串var arr = eval(str);//通过eval执行字符串,结果arr是一个数组,数组内容是"1","2","3","4"补充:eval() 函数可计算某个字符串,并执行其中的的 JavaScript 代码,并返回通过计算 string 得到的值 ...
js以逗号分隔的字符串怎么转化为数组答:整个字符串都会被分割,不考虑它的长度。一般使用中写一个参数就行例:var str = "123-456-789-000";document.write(str.split("-"))//返回["123","456","789","000"]//输出:123,456,789,000document.write(str.split("-",3))//返回["123","456","789"]//输出:123,456,789 ...