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Object.create - javascript Object

http://javascript.boxsheep.com/polyfills/Object-create

How to iterate over an object. How to check if an object is empty. How to get the class of an object value. JavaScript polyfill, by Bjørn A. Johansen. Wednesday, April 2nd, 2014. Method is very useful for creating objects of a specific prototype, but if you are using it and your visitors are using older browsers that do not support this feature, then you can use a polyfill. The first one, and the one I recommend that you use, is written by Douglas Crockford. With that said, lets have a look at the code;.

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How to write an removeClass method - javascript DOM

http://javascript.boxsheep.com/how-to-javascript/How-to-write-an-removeClass-method

How to write an addClass method. How to write an replaceClass function. How to write an toggleClass function. How to write an removeClass method. JavaScript polyfill, by Bjørn A. Johansen. Friday, March 28th, 2014. This article is very much in relation to my previous article How to write an addClass method. I use this to test if the passed parameters are of the right object class. The reason we need this test is, that the removeClass. Functions I am going to show here takes two parameters;. This of cours...

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JavaScript polyfills

http://javascript.boxsheep.com/polyfills

By Bjørn A. Johansen.

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How to JavaScript

http://javascript.boxsheep.com/how-to-javascript

Search how to JavaScript. How to append arrays. How to check if an array is empty. How to create an array. How to get a random element from an array. How to iterate over an array. How to map key value arrays. How to merge arrays. How to shuffle an array. How to sort an array numerically. How to turn an array into a string. How to use the Array sort method. How to check if an object is empty. How to get the class of an object value. How to iterate over an object. How to check if a value is a number.

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Array.prototype.find - javascript Array

http://javascript.boxsheep.com/polyfills/Array-prototype-find

How to iterate over an array. How to check if an array is empty. How to use the Array sort method. How to sort an array numerically. How to shuffle an array. How to turn an array into a string. How to create an array. How to append arrays. How to merge arrays. How to get a random element from an array. How to map key value arrays. JavaScript polyfill, by Bjørn A. Johansen. Saturday, April 12th, 2014. In this article, I am going to show you three possible polyfills for the Array.prototype.find. This first...

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How to do event delegation - javascript Events

http://javascript.boxsheep.com/how-to-javascript/How-to-do-event-delegation

How to do event delegation. JavaScript polyfill, by Bjørn A. Johansen. Tuesday, June 24th, 2014. What is event delegation? If you have a set of elements that needs to respond to some event, instead of attaching an event to each element, you attach one. Event to a common parent of those elements. You then listen for any events bubbling up from its children, and fire what ever functions needed to be executed in responds to the event. Why do event delegation? Give me a practical example, please. Elements ca...

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Array.prototype.reduce - javascript Array

http://javascript.boxsheep.com/polyfills/Array-prototype-reduce

How to iterate over an array. How to check if an array is empty. How to use the Array sort method. How to sort an array numerically. How to shuffle an array. How to turn an array into a string. How to create an array. How to append arrays. How to merge arrays. How to get a random element from an array. How to map key value arrays. JavaScript polyfill, by Bjørn A. Johansen. Monday, April 21st, 2014. If you need to accumulate a value based on an array, the Array.prototype.reduce. Is the accumulated value.

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How to write a getHttpParameterMap function - javascript Browser

http://javascript.boxsheep.com/how-to-javascript/How-to-write-a-getHttpParameterMap-function

How to check for CSS3 browser support. How to write a getHttpParameterMap function. JavaScript polyfill, by Bjørn A. Johansen. Friday, April 4th, 2014. As the very first thing, I would like to underline that this is a simplification of getting the HTTP Parameter Map, but one that will suffice for many cases. Maybe you can use this as a start to something more specialized for your specific purpose, or maybe this will simply do. Luckily in JavaScript, writing a getHttpParameterMap. Function at line 1.

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How to map key value arrays - javascript Array

http://javascript.boxsheep.com/how-to-javascript/How-to-map-key-value-arrays

How to iterate over an array. How to check if an array is empty. How to use the Array sort method. How to sort an array numerically. How to shuffle an array. How to turn an array into a string. How to create an array. How to append arrays. How to merge arrays. How to get a random element from an array. How to map key value arrays. JavaScript polyfill, by Bjørn A. Johansen. Saturday, April 19th, 2014. Containing the map keys, and valArray. MapArrays function with for-loop. While this code works, it makes ...

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How to write a compose function - javascript Functions

http://javascript.boxsheep.com/how-to-javascript/How-to-write-a-compose-function

How to write a compose function. JavaScript polyfill, by Bjørn A. Johansen. Wednesday, June 25th, 2014. In this article I will show how to write a compose. Function. If you have used libraries like underscore.js. Or maybe its reversed. You might have used and feel familiar with their compose. Function. What it lets you do is, to compose a new function out of an arbitrary number of other functions. First I will spend a short time examining the differences in the implementations in underscore.js. It is the...