IntroductionHash tables are a permutation of associative arrays (i.e. name => value pairs). If you use PHP, then you are very familiar with this type of data structure already since all PHP arrays are associative.The Javascript language implements very loose and somewhat limited support for associative arrays. Any JavaScript array can use other objects as keys, making it a hash, but there exists no formal constructor for initializing them and it is more or less unweildy to work with. A short example of a hash in JavaScript would be as follows:var myArray = new Array();myArray['one'] = 1;myA...

Deleting an item from an array is easy using JavaScript’s built-in method splice(). However, if you are somewhat new to scripting, simply knowing about splice does not help you remove a certain item from an array. This article will solidly state the solution to this dilemma.If you want to remove a specific item from your array, you will simply use a basic loop and a conditional check with the splice()method.Here is a breakdown of what we will do in 3 easy steps, so that you can implement this solution yourself later.The Three Step ProcessSetup a basic ‘forâ€...

Our first tutorial on JavaScript arrays covered the basics: creating arrays, accessing the contents of arrays, array lengths, and looping through arrays.In this tutorial, you explore arrays in more depth, and learn how to use various methods of the Array object to manipulate arrays.Extracting sections of an array with slice()You're not limited to accessing single array elements at a time. Thanks to the slice() method, you can grab a whole section of an array at once. slice() has the following syntax:arraySlice = array.slice ( begin [, end] )The two parameters, begin and end, work as follows:be...