Today I was writing some code in which I wanted to modify the values of an array within a for-loop. The obvious solution would be to use the key to modify the value but there is actually another way of doing it: The above code will actually go through the Read more…
If you should ever need to parse a number into an array of bits or a different base you can use the following function: var splitNumber = (function(MAX) { for (; MAX + 1 – MAX == 1; MAX *= 2){} return function (num, radix) { // Validate num num Read more…
A function that is proposed to be added to EcmaScript 6 is Array.of(). This function will be used to create an array of the passed parameters. Since this function is available in some browsers but not in all, here is a block of code which when executed will define it Read more…
A cool function that exists in Python is the range function which actually creates a list of numbers within the specified range. Once again, since I love JavaScript, here a quick imitation of this function: Of course, this is probably not a complete imitation, but as you can see it Read more…
Yesterday I wrote this post about a way to loosely imitate having array comprehensions in JavaScript. After thinking about it a bit more, I thought it would be best to change the function to be more like this: I wanted to remove the declaration of a variable which will be Read more…
In my job I have recently switched over to primarily coding in Python and I am loving the change. One thing that I find interesting is list comprehensions. Still, since my first love is JavaScript, I wanted to be able to do something similar in JavaScript and had remembered coming Read more…
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…
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…
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…