The following is a quick JavaScript function which can determine if a string starts with a substring: The above function is a function that, once defined, will exist for every string. The first parameter, which is the string to be found, is required. The second parameter, which is a boolean Read more…
The following is a quick JavaScript function which can determine if a string ends with a substring: The above function is a function that, once defined, will exist for every string. The first parameter, which is the string to be found, is required. The second parameter, which is a boolean Read more…
ECMAScript 5 has introduced the new Function.prototype.bind() function which not only gives you the ability to natively bind a primitive or object to a function and also curry data for the function. Unfortunately, up to this point, nobody has written an implementation of this function to make it work on Read more…
One of the nice prototype functions available in the Prototype JS library is Function.prototype.delay(). The reason this is a great function is the fact that it actually allows you to call a function after a certain amount of time with the specified parameters. The following is an example of how Read more…
Almost a month ago, I posted about creating a camel case function in VBScript. Now I think it is time to see a simple way to implement this function in JavaScript: Believe it or not, that is all the code you will need for the following to work: You will 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…
Method overloading is one of the nice things that exists in real programming languages such as Java. Even though JavaScript starts with “Java”, there are very few similarities between the two languages. Still, due to the power of the scripting language, there is a way to overload functions. The most Read more…
Often times, many people have made claims that it is not possible to make variables private in JavaScript. I am here to tell you that those people are wrong. There are many implementations from JavaScript guru’s such as Douglas Crockford explaining how to do this. Although these implementations will get Read more…
With jPaq and many other JavaScript libraries, it is very easy to do a shallow copy of an array. On the other hand, it isn’t as easy to do a deep copy of arrays. For this reason, I plan on replacing the Array.prototype.clone() function with the following: The above code Read more…
I personally love both JavaScript and Python. For this reason, from time to time I like to port functions that are available in Python, over to JavaScript. The following is a port of the expandTabs function. The biggest difference between this JavaScript version and the Python version is the limitation Read more…