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Assuming a normal JavaScript engine, what could you possibly pass into the following mystery() function that would not thrown an error? As is normal, this answer will be shown a week from when it was posted and will be linked to from here.The answer to this POW can now be Read more…
One of the supposedly evil things that is available in jQuery is eval. The type of eval that is available is of the global variety. In other words globalEval provides the ability to execute JavaScript code from a string in the global scope. Most people don’t realize it, but eval Read more…
One DOM element property that has been provided in Internet Explorer that isn’t natively available in some other browsers is outerHTML. Fortunately there is a cross-browser solution for getting this property: I actually can’t take the credit for this function because it is derived from Google’s Closure Library. The function Read more…
One of the things that is in the new version of jPaq is simple AJAX handling. The way that I accomplished it was by using code similar to the following: The above code basically provides a function called requestContentFrom(...). This function takes the URL of the content that you are Read more…
Recently I was asked to add an HTML code snippet containing external CSS and JS to a few different web pages. After having the code tested, of course Internet Explorer was the browser that caused me an issue. The stylesheets that were added were taking precedence for the styling in Read more…
Iterating through the key-value pairs of an object that one has created is a task often executed. In view of this, I wrote the following code as a quick and easy way to iterate through all of the keys using a callback function: The JSDoc pretty much explains it all Read more…
One of the nice things that many people don’t know about JavaScript String replace() function is the fact that the second parameter can either be a string or a callback function. This callback function receives the entire matched substring, each parenthesized group (if not found the empty string is passed), Read more…
Sometimes you may have to use Textwrangler, SublimeText, Notepad++, or whatever IDE to search for a string which contains something commonly found outside of a string. For example, what if you want to find a string that in a Python file that had a hash symbol. In this case you Read more…
If you create a regular expression and set its global flag to true, it is important to note that if you want to test multiple strings against that RegExp using the test() function you will most-likely want to zero out the regular expression’s lastIndex property. Take the following code for Read more…
Today I saw a question about changing content without necessarily using JavaScript to do so. Recently I have had to do a little bit more with CSS and think of more solutions with JS. Thusly I came up with a somewhat elegant solution to replacing content on hover without JS: Read more…