angular lifecycle hooks

ByAnurag batra July 24, 2022June 30, 2022

AngularJS lifecycle hooks
Angular gives us 8 hooks to allow us to tap into the lifecycle of our components and trigger actions at specific points in the lifecycle.

1. ngOnChanges
2. ngOnInit
3. ngDoCheck
4. ngAfterContentInit
5. ngAfterContentChecked
6. ngAfterViewInit
7. ngAfterViewChecked
8. ngOnDestroy

Here is what the above code is Doing:
1. We are importing the OnInit interface from the @angular/core package.
2. We are implementing the OnInit interface.
3. We are defining a ngOnInit() method.
4. We are calling the ngOnInit() method inside the constructor.

Javascript Examples

get input value angular

ByAnurag batra July 8, 2022June 30, 2022

const type = (document.getElementById(‘type’)).value; #https://www.fiverr.com/tamerjarrar Here is what the above code is Doing: 1. We’re getting the value of the input element with the id of “name” and storing it in a variable called name. 2. We’re getting the value of the input element with the id of “type” and storing it in a variable…

Javascript Examples

repeat a function javascript

ByAnurag batra July 31, 2022June 30, 2022

// best implementation repeatStr = (n, s) => s.repeat(n); Here is what the above code is Doing: 1. We create a function called repeatStr that takes two arguments, n and s. 2. We return the string s, repeated n number of times. 3. We use the repeat() method to return a new string with a…

Javascript Examples

each jquery

ByAnurag batra July 13, 2022June 30, 2022

$.each(array, function(key, value) { if(value === “foo”) { return false; // breaks } }); // or $(selector).each(function() { if (condition) { return false; } }); Here is what the above code is Doing: 1. The first $.each() is a jQuery method that loops through each element in an array. 2. The second $(selector).each() is a…

change url with javascript after 5 seconds

Javascript Examples

change url with javascript after 5 seconds

ByAnurag batra July 14, 2022June 30, 2022

window.setTimeout(function(){ window.location.href = “https://www.google.co.in”; }, 5000); Here is what the above code is Doing: 1. It is creating a new element. 2. It is setting the text content of the element to the JavaScript code. 3. It is appending the element to the element. The above code will redirect the user to Google after 5…

Javascript Examples

what is closure in javascript

ByAnurag batra July 17, 2022June 30, 2022

–>closure in javascript //closure is the combination of function and the lexical enviornment in //which the function is defined.closure give you access to the functions //and variables outside the function. function outer(){ const outerData =”outer”; function inner(){ const innerData=”inner”; console.log(`${outerData} and{innerData}`); } inner(); } outer(); Here is what the above code is Doing: 1. The…

Javascript Examples

What is JSON?

ByAnurag batra July 3, 2022June 30, 2022

● It is JavaScript Object Notation (is a minimal, readable format for structuring data.) ● It is used primarily to transmit data between a server and web application, as an alternative to XML. ● Basically, a lightweight version of XML ● In Key: Value format ● Key is always in double quotes and value if…

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