Skip to main content

AngularJS Vs. Angular : Understanding the Differences

AngularJS Vs. Angular
AngulaJS vs Angular
1. Angular is not an upgrade of AngularJS but it is completely rewritten.
2. AngularJS has easy setup. only need to include angular.js library. Angular 2have a difficult setup which has already mentioned in my previous blog:- https://uisource.blogspot.com/2019/09/build-angular-appplication.html
3. Angular is written in Typescript.AngularJS is written in javascript.
4. Angular is the component-based approach. AngularJS is an MVC based approach.
5. AngularJS was not built with mobile support in mind, where Angular 2 is mobile-oriented.
6. AngularJS’s core concept is $scope but you will not find $scope in Angular 2.0 and above.
7. AngularJS Controllers are gone in Angular v2. We can say that Controllers are replaced with “Components” in Angular 2.
8. Two-way data binding: ng-model has been replaced with [(ngModel)].
9. In Angular 2, Structural directives syntax is changed. ng-repeat is replaced with *ngFor.
10. Angular 2 uses camelCase syntax for built-in directives. For example, ng-class is now ngClass and ng-model is now ngModel.
11. Angular 2 provides more choice for languages.
12. Angular 1.x Dependency injection achieves by Controllers, Angular 2 Dependency injection achieves by Constructor.

Comments

Post a Comment

Popular

JavaScript type hoisting with variable function Expression

JavaScript type hoisting with variable function Expression Hoisting is JavaScript default behavior to moving declaration on the top. Variable can be used before its declaration. To understand this, first we need to understand of hoist meaning, hoist means “raise(something) by means of ropes & pulleys”. now we can relate hoisting with JavaScript. JavaScript interpreter moves all declaration on the top at runtime. It is best practice to declare all variable at the top of their respective scopes. , JavaScript is loosely syntax language so it will not throw any error at runtime if the variable used before its declaration. But JavaScript does not allow variable used before its declaration in “use strict” mode. Example 1 In this example, we can see in a normal scenario, when y has declared & then used. in this case, it will give output 10 as excepted. <p id= "demo" ></p> <script> var y; //Declare y y = 10 ; ...
4 comments
Read more

JavaScript Closure

What is closure? It is my personal experience, I have never understood closure, I have read many articles & have seen many videos. Finally, I understood sometimes we even used a closure without realizing we were using a closure. First, understand the meaning of closure “an act or process of closing something”, now we can relate closure in javascript, closure is an inner function which wraps inside the outer function, which can access outer function scope & global function scope. for scoping you can read my previous blog:- http://uisource.blogspot.com/2018/08/javascript-variable-scoping.html why do we create? Global variables can be made local (private) with closures. To avoid the usage of global variables, use the local variables and wrap your code in the closure. A closure is an inner function that has access to the outer (enclosing) function’s variables—scope chain(Lexical scoping). The closure has three scope chains: it has access to its own scope (variables define...
1 comment
Read more

JavaScript Variable Scoping

There are two types of variables in JavaScript.  Global variables have global access and are declared outside of any function. Local variables are those declared inside of function. Lexical Scoping(Nested JavaScript Function) means that in a nested group of functions, the inner functions have access to the variables and other resources of their parent scope. Global variable:- Global variable declares & initialize outside the function, & accessible in from anywhere in the code. The global variable always stored in memory even function execution finish, it always keeps in memory or always accessible from anywhere in the code. Example 1 var message= "hello i am global variable" ; //global variable function a (){ console.log(message); // output: hello i am global variable } function b (){ console.log(message); // output: hello i am global variable } function a() function b() In above example message is a global variab...
1 comment
Read more