As I was improving the next version of jPaq, I realized that another simple type checking function that I need is one that will indicate whether or not the specified argument is a primitive. believe it or not, the code to do this test is quite simple: In JavaScript, the Read more…
As I was thinking about the swap() function that jQuery uses internally, I thought some people may also find a backup() function and restore() function useful. For instance, you may get tired of worrying about using the var keyword inside of a function in order to prevent the variable from Read more…
When looking for examples of generator function definitions, one of the foremost that you will find is one for generating the fibonacci sequence. One of the great things about the upcoming version of JavaScript is the fact that it will allow generator functions to be defined. The following is the Read more…
One of the things that I have noticed about bitwise operations in JavaScript is that it can be convenient for smaller values, but doesn’t always work for larger values. The reason this is the case is because bitwise operators will only work fully for operands which can be fully expressed Read more…
Now Available in YourJS For those of you who don’t know too much about regular expressions or just want to be able to replace every occurrence of a substring with something else, perhaps this definition for the replaceAll() function of all instances of String object will prove beneficial: Yep, that’s Read more…
A few weeks ago, while analyzing some of the CSS code for jQuery, I noticed a call to the swap() function. After looking through the definition of the function and reading the reason for using it in the documentation, I realized that this function might be pretty useful for others. Read more…
One of the newer functions that was added as of the 5th edition of ECMA-262 is Date.now(). This function returns the number of milliseconds that have passed since January 1, 1970 at midnight GMT time (UTC). If you desire to write code that uses this newer function, in order to Read more…
Purpose of the valueOf() Function Let me start off by explaining the commonly misunderstood valueOf() function. The purpose of this function is to return a primitive which represents the specified object. Why is this necessary? Let’s use the following code to illustrate why: If you were to execute this code, Read more…
One of the nice things about JavaScript is its functional nature. This is especially nice when it comes to dealing with strings and regular expressions. For instance, in JavaScript, you can use the following code to capitalize every other letter in a string: Cool stuff, right? Wouldn’t it be nice Read more…
Here is a little snippet that you may find useful if you ever have to randomize the contents of an array: Here is an example of how to use it with an array: The above example will show the names that are in the names array in random order. If Read more…