I'm trying to replace some codes in JavaScript. Somehow, this doesn't work.
var name = "check & ' \"";
alert(name);
alert(name.replace(/["]/g, "\""));
alert(name.replace(/[\]/g, "\"));
What am I doing wrong?
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Those "codes" are called entities, by the way.user2428118– user24281182012-10-06 14:50:11 +00:00Commented Oct 6, 2012 at 14:50
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2 Answers
Don't use regex, just parse it:
var d = document.createElement('div');
d.innerHTML = "check & ' \"";
console.log(d.innerText);//all done
Create an element (in memory, it won't show), and use the innerText property, this'll return the text equivalent (ie converts all html-entities to their respective chars).
As a side-note: the reason why /["]/g would never work is because you're creating a character class/group: it'll match any 1 character of the group, not the entire string:
d.innerHTML.replace(/["]/g,'@');//"check @amp@ ' \""
d.innerHTML.replace(/(")/g,'@');//"check & ' \""
answered Aug 27, 2012 at 15:28
Elias Van Ootegem
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2 Comments
Elias Van Ootegem
@DavidThomas: NP, you were right. I had no reason to be blunt
David Thomas
Meh, we've all been there... =)
In regex, [] means "any of the following characters". So, /[\]/g will match a &, a #, a 9, a 2 or a ;.
Try it without the [].
var name = "check & ' \"";
alert(name);
alert(name.replace(/"/g, "\""));
alert(name.replace(/\/g, "\""));
