Today I worked on a project which involved weighted randomization. In other words, I had to randomly choose an item from an array of weighted items. The items that were assigned a higher weight were to be more likely to be picked. The following is a JavaScript function that accomplishes Read more…
One common thing that I end up doing, for work and person projects, when writing JavaScript is iterating over all of the properties of an object that I create. Since this task is quite common, I often wrote a each or forEach function for each project. In my most recent Read more…
One thing that I think would be cool is if JavaScript provided a way to pass arguments to a function by name. About two years ago I wrote the code for a Function.prototype.invoke but never released it as part of jPaq like I had hoped. Recently, I decided to re-use Read more…
A few days ago someone asked me how I would go about determining the unicode escape sequence for an arbitrary character. Of course, I went to Google Chrome’s web console and showed them how it can be done by using the charCodeAt, toString, and slice functions. The following is a Read more…
At times you may need to use a polling function in order to wait for an event before the rest of your code can fire. One way we can solve this is with a polling function: Let’s say that you want a function which tells the user when window.myCustomVar is Read more…
Recently I had to develop a solution which involved changing the HREF attributes of links in the navigation bar of a site. This had to be done on the JavaScript side because at my company we are the 3rd-party JavaScript solution for modifying other companies’ sites. That being said, I Read more…
One of the things that I often end up doing is using JavaScript’s replace function with a regular expression and a callback function. Recently, though, I have been thinking about redeveloping an HTML application (HTA) that I made a long time ago for PCs. This HTA gave me the ability Read more…
At times you may want to get the size of the window. I don’t remember where I came across the original code, but I modified it and created the following function: As far as I can tell, this should work in all browsers, but if you find that it doesn’t Read more…
Well before I had this site, I created a program which needed to order file names such as the following: Unfortunately, if you just use the normal {Array}.sort() without a callback function, the following will be the resulting order of the file names: As you can see, the 15th episode Read more…
So, after doing even more research on providing prototypal functions access to private data, I came across this article on the Safe Factory Pattern. It is actually similar to my Accessor Verification pattern that I recommended here on Monday. The quick summary is that by shortening this a bit, you Read more…