A lot of my friends who are new to javascript find this concept really daunting and it is infact a topic which makes people working in javascript google it again and again . So i will just put it here for your (and my ) reference .
So when we talk about asynchronous programming in javascript , we are nowhere near parallel programming , but can we achieve parallel programming in javascript ? Well, with HTML5 spec , we can using web workers , but that is actually a browser spec rather then a feature of javascript . Memorize it by heart (as...
A simplistic guide to start GRUNT
Lets talk about GRUNT - the Task Runner today . Now, some of you guys would be like .."Woo i am outta here " because yes, grunt has been hyped as a somewhat mysterious feature about which some people think that they are better off without it .
But if you invest few hours of your life learning it, you will surely save few weeks at the least .
Now, what is grunt and what does it do ? It is an automating tool which is an indisposable particularly if your creating an app for production . You ask why!! because it provides a great...
Transclude:'element' demystified
Transclusion is no doubt a very confusing topic in AngularJS. It has two ways of implmentation :
1) transclude: 'true'
2) transclude: 'element'
as far as transclude: 'true' goes, one can grasp it with little effort but transclude: 'element' seems like a lot of work .
So, what thus transclude:'element' do ?
It transcludes the whole element ,i.e, it copies the content inside the directive as well as the directive tag itself and places one or more copies of it with the correct scope .
The transclusion is achieved via transclusion function...
What is a prototype based language in terms of javascript
Today i was going through the basics and since switching from a class based language to a prototype based language can be a a little tricky , i will leave this post here.
Now. What the wiki says :
Prototype-based programming is a style of object-oriented programming in which behaviour reuse (known as inheritance) is performed via a process of cloning existing objects that serve as prototypes. This model can also be known as prototypal, prototype-oriented, classless, or instance-based programming. Delegation is...
pipeline of ngModelController
ngModelController is undoubtedly one of the reasons why AngularJS is so awesome . It is responsible for two way data binding , which is what people use when they are asked to display Angular powers. It is the eye candy of Angular .
Yaa i sound like i am in love with it .. Well, yes i am.
Using ngModelController in its usual form ( inside input fields with ng-model) is all easy and fun. All you have to do is give a model value to ng-model attribute and you are good to go..
<div ng-controller="databinding">
<input type="text" ng-model="user"...
Forms in angularJS (ngFormController)
Forms in angularJS are quite advanced then the normal HTML forms, and they work wonders with ngModelController. ngModelController, along with keeping the model and view in sync( by $formatters and $parsers) also helps in validating the data and checking if the value was changed from its default ( this is achieved by $pristine,$dirty,$valid,$invalid properties and by using the respective css classes) . There are a lot many properties and methods of ngModelController but we will mention these four for simplicity .
ngModelController.$pristine returns...
Scopes in directives of AngularJS
For this blog , you need a basic understanding about custom directives in AngularJS .
Scope is a concept of AngularJS which can be pretty tricky at times, and can get difficult to make sense out of it . Thanks, to some extensions, like batarang , we can check the scope IDs of elements and check which have same or different scope. All DOM elements that have been compiled by AngularJS have a scope associated with them. In most cases DOM elements do not have scopes defined directly on them but get their scope from some ancestor element....