Script for backward-compatibility: https://github.com/douglascrockford/JSON-js/blob/master/json2.js And call: Note: The JSON object is now part of most modern web browsers (IE 8 & above). See caniuse for full listing. Credit goes to: @Spudley for his comment below
If the iframe was not on a different domain, you could do something like this: But since the iframe is on a different domain, you will be denied access to the iframe’s contentDocument property by the same-origin policy. But you can hackishly force the cross-domain iframe to reload if your code is running on the iframe’s parent page, … Read more
You can use document.getElementById(‘divId’).className.split(/\s+/); to get you an array of class names. Then you can iterate and find the one you want. jQuery does not really help you here…
You can use jQuery’s attr() function. For example, if your img tag has an id attribute of ‘my_image’, you would do this: Then you can change the src of your image with jQuery like this: To attach this to a click event, you could write: To rotate the image, you could do this:
I think you need to have strings as the data values. It’s likely something internally within jQuery that isn’t encoding/serializing correctly the To & From Objects. Try: Notice also on the lines: You don’t need the jQuery wrapper as To & From are already jQuery objects.
Javascripts .call() and .apply() methods allow you to set the context for a function. Now you can call: Which would alert FOO. The other way around, passing obj_b would alert BAR!!. The difference between .call() and .apply() is that .call() takes a comma separated list if you’re passing arguments to your function and .apply() needs … Read more
Value of textarea is also taken with val method:
Your form is being submitted already as your button is type submit. Which in most browsers would result in a form submission and loading of the server response rather than executing javascript on the page. Change the type of the submit button to a button. Also, as this button is given the id submit, it … Read more
To do this efficiently using jQuery, you can chain it like so: For simplicities sake, you can also do it step by step like so (note assigning the jquery object to a var isnt necessary, but it feels safer in case you accidentally remove the class you’re targeting before adding the new class and are … Read more
you can just append another hidden img element and swap them in onload event. Or use single image element and use javascript like: this code should preload the image and show it when it’s ready