Question

我需要用自己的几个字取代。例如

案文案文有点改动。

Need to be replaced by dog or cat or mouse if match. I needed to replace it once . If it find word dog means to replace the only dog in dog. And nothing more. Even if cat or mouse will be the text.

我有法典。

var str = "dog text cat text mouse",
    reg = /dog|cat|mouse/;
str = str.replace(reg,  <b>dog</b> ).

Sorry, this only replace any of matched with dog. Help me , please.

Answer 1

利用<代码>g旗帜进行全球搜索,而不仅仅是取代第一种发生。

定期用括号中括号来赶上配对,并在替换时使用$1,以使用你发现的东西。

var str = "dog text cat text mouse";
var reg = /(dog|cat|mouse)/g;
str = str.replace(reg,  <b>$1</b> )

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