Javascript：如何替换字符串的内容，而不替换HTML标记中的内容？

Question

I want to write a Javascript function to change the text Lasvegas in string: example:

" Hello every one in Lasvegas, come to <a href='xxx'>Lasvegas</a> with me "

How can I change the text "Lasvegas" but not change the content Lasvegas that is in an HTML tag?

Answer 1

可能是这样的

str.replace(/Lasvegas[^<]/,'123')

Answer 2

EDIT: Forgot JavaScript supports negative lookaheads:

"Hello every one in Lasvegas, come <a href='xxx'>Lasvegas</a> with me"
    .replace(/(Lasvegas(?!<))/g, "World");

Returns:

Hello every one in World, come <a href='xxx'>Lasvegas</a> with me

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Left in so everyone can see how pointless my first answer was ;-)

Alexey's answer would work if "Lasvegas" wasn't at the end of the string. I'm not sure if there's a better way, but you could use a replacer function to assert whether the text is inside a tag or not:

 var str = "Hello every one in Lasvegas, come <a href='xxx'>Lasvegas</a> with me"; var out = str.replace( /(>?Lasvegas<?)/g, function ($0) { if ($0.slice(0,1) == ">") return $0; else return "World"; } ); 

contents of out :

Hello every one in World, come <a href='xxx'>Lasvegas</a> with me