• JavaScript: Convert arguments to Array

    How to convert arguments to an Array All JavaScript functions have a local variable called arguments, which is a list of arguments that were passed to the executing function. The first argument can b...

  • JavaScript: Array slice() with examples

    JavaScript array.slice() explained with examples .slice() is a method on all instances of arrays in JavaScript. It accepts two parameters - start index and end index - both of which are optional, and...

  • JavaScript: apply and call

    What are apply() and call() in JavaScript? apply and call are two of the less encountered and less well understood aspects of JavaScript, primarily because of their unfamiliarity. Why are they unfami...

  • JavaScript: Get object size

    How to get the size of an object in JavaScript Arrays in JavaScript have a length property that gives you the number of items in an array. Objects on the other hand, don't have a length or size prope...

  • JavaScript: Object as object key

    Can you use objects as Object keys in JavaScript? The short answer is "no". All JavaScript object keys are strings. Even if you pass an object as a key, the object's toString() will be called on it, ...

  • JavaScript: get the number of properties in an object without looping

    How to get the number of properties in a JavaScript object without looping Unlike arrays, JavaScript objects do not a have a length property which gives you the number of properties / items in an obj...