The some() array works similar to the every() method, it also returns true or false when the condition is met.  some() needs to match just o...

If you come from C# or Java, JavaScript inheritance is a little different than what you are used to.  In JavaScript you don't inherit fr...

In the previous post we created arrays of different types, in this post we are going to read the values from our arrays. Let's work wi...

Arrays in JavaScripts are a collection of values stored in what are called elements.  Each element is represented by a numeric index that is...

The Array.isArray() method is a useful method to determine object is of type array.  Let's demonstrate with some code. <script...

In JavaScript when you define a function you get a built-in Arguments object, this object is an array-like object that puts the arguments/pa...

A JavaScript class is different than classes in other languages like C# or Java.  A class in JavaScript means that the objects inherit prope...

The lastIndexOf() method searches for last appearance the element in the array that matches the passed in value. In this example we will sea...

The indexOf() method searches for the element in the array that matches the passed in value. In this example we will search for the value 6...

The every() method is a method that tests a condition on every array element and makes sure that all the elements meets the criteria.  It re...

A JavaScript function is a piece of code that is defined once and can be reused through your program.  A function can have arguments or para...

JavaScript does not have a built-in feature to define a namespace.  A namespace is basically a container of your code that it does not pollu...

The filter() method returns the elements of the array that satisfies the function that is passed into the method.  If the function returns t...

The JavaScript array splice() method allows you to delete and insert array elements in one method Before we get to the examples let's s...

JavaScript is a flexible language, and that flexibility extends to functions.  A JavaScript function are not just codes that you reuse and e...

The Array.concat() method returns a array that is a concatenation of the original array and what what is being passed into the concat() meth...

The Array.sort() methods sorts the array in alphabetical order by default, or you can pass in a custom sort function. So let's say you...

The Array.join() method converts all of the elements of an array into strings and concatenates the elements.  If no delimiter is defined it ...

In JavaScript the DOM is an acronym for "Document Object Model" that's quite a mouthful.  Most people just refer to it as the ...

To make your functions developer friendly it is sometime useful to define your a arguments as properties.  This way your code is self docume...