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使用正则替换变量_javascript技巧

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Release: 2016-05-16 19:13:55
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我们使用 str.replace(/s/g,"world") 可以将字符 "s" 替换成 "world"
如果要替换一个变量呢? s = "abc" 怎样将全部 abc 替换成 "world" ?

复制代码 代码如下:

str.replace(new RegExp(s,"g"),"world")

s 中不要包含正则元字符 否则会产生错误
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