Javascript .replace（）无效 [英] Javascript .replace() not working

问题描述

carList = cars.innerHTML;
alert(carList);
carList = carList.replace("<center>","").replace("</center>","").replace("<b>","").replace("</b>","");
alert(carList);

为什么世界会发生这种情况？我已经尝试将其拆分为单独的string.replace（），并给出相同的结果。

Why in the world is this happening? I've tried splitting this out into individual string.replace()'s and that gives the same result.

推荐答案

使用带字符串的 .replace（）只会修复第一次出现就是你所看到的。如果你用正则表达式代替它，你可以指定它应该是全局的（之后用 g 指定它），因此可以全部出现。

Using .replace() with a string will only fix the first occurrence which is what you are seeing. If you do it with a regular expression instead you can specify that it should be global (by specifying it with a g afterwards) and thus take all occurrences.

carList = "<center>blabla</center> <b>some bold stuff</b> <b>some other bold stuff</b>";
alert(carList);
carList = carList.replace(/<center>/g,"").replace(/<\/center>/g,"").replace(/<b>/g,"").replace(/<\/b>/g,"");
alert(carList);

请参阅此小提琴表示工作样本。

See this fiddle for a working sample.

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