CODEWITHSUNDEEP
javascriptjquery
andyf
andyf

Reputation: 3350

The right way parse html to jQuery object

I want to parse a html string to jQuery object then find an element by ID.

I tried 3 ways bellow, but only the last works. I don't know why the others not works?

var html = "<html><body><div id='main'></div></body></html>";

// Not work, return 0
console.log($(html).find('#main').length); 
// Not work, return 0
console.log($($.parseHTML(html)).find('#main').length); 
// Works, return 1
console.log($("<html/>").html(html).find('#main').length);

Here is the sample: http://jsfiddle.net/nbyofkam/2/

Upvotes: 11

Views: 22502

Answers (2)

Stacie
Stacie

Reputation: 235

An alternate way to do this - 

var myTestDiv = document.createElement('div');
var mystr = '<div id="main"></div>';
myTestDiv.innerHTML = mystr;

console.log(myTestDiv.querySelector('div#main'));

Upvotes: 8

Denys S&#233;guret
Denys S&#233;guret

Reputation: 382160

It's documented :

When passing in complex HTML, some browsers may not generate a DOM that exactly replicates the HTML source provided. As mentioned, jQuery uses the browser"s .innerHTML property to parse the passed HTML and insert it into the current document. During this process, some browsers filter out certain elements such as <html>, <title>, or <head> elements. As a result, the elements inserted may not be representative of the original string passed.

As a result, $(html) is reduced to "<div id="main"></div>". You can verify that by logging $(html)[0].outerHTML.

So you can't use find without wrapping it, which is what you do.

Upvotes: 10

Related Questions