My jQuery question I beleive is pretty simple, which is driving me insane that I can't get it.
I have an object with a property "content", I want to be able to take that object, manipulate the property "content" with jQuery and then overwrite the value with the new value jQuery creates.
Example:
o.content = "<div><span>hello</span></div>";
$('div', o.content).addClass('test');
At this point I want o.content to be equal to <div class='test'><span>hello</span></div>
I can not for the life of me figure out the syntax. Any help is really appreciated.
Parse the html in o.content
, add the class, append the parsed html to a new <div>
, and get the html of the new div:
o.content = "<div><span>hello</span></div>";
var el = $(o.content).addClass('test');
o.content = $("<div>").append(el).html();
Edit: This assumes you want o.content
to still contain a string, rather than a jQuery object. In that case, it's simpler:
o.content = $(o.content).addClass('test');
如果需要的话,这将为您提供一个字符串<div class="test"><span>hello</span></div>
:
$(o.content).addClass('test').wrap('<div>').parent().html();
I don't think you can lookup an element from a string like that.. I would rather do it like below,
var content = "<span>hello</span>";
content = $('<div/>', {class: 'test'}).html(content)
from the docs of the jquery function , context
must be
A DOM Element, Document, or jQuery to use as context
Your context ( o.content
) is a string. Also, the jQuery function is not able to select the entire context, it can only select elements in that context.
Try this instead:
// make o.content a jquery element, not a string
o.content = $("<div><span>hello</span></div>");
// select on something inside the context (inside the div), not the div itself
$('span', o.content).addClass('test');
You want the following
o.content = "<div><span>hello</span></div>";
// Create a jQuery object you can call addClass on
var docFragment = $(o.content);
docFragment.addClass('test');
// Since there's no outerHTML in jQuery, append it to another node
var wrapper = $('div');
docFragment.appendTo(wrapper);
// The HTML of the wrapper is the outerHTML of docFragment
console.log(wrapper.html()); // outputs <div class='test'><span>hello</span></div>
Why not do it all in one line:
var o = {};
o.content = $( "<div></div>" ) // create element
.addClass('test') // add class
.html( '<span>hello</span>' ); // append content
o.content = $("<div><span>hello</span></div>");
o.content.addClass('test');
o.content is a jQuery object in this example, as opposed to just a string. Here's a demo on jsfiddle: http://jsfiddle.net/cvbsm/1/
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