Code: October 2021

Sunday, October 24, 2021

Call Back Functions in Javascript

<!DOCTYPE html>

<html>

<head>

<title>Call Back Function</title>

</head>

<body>

<h1>Students List</h1>

const students = [

{name : "atul", subject : "Computer Science"},

{name : "ashish", subject : "Computer Network"}

]

function setStudents(something, callBack) {

setTimeout(function(){

students.push(something);

console.log("Student Updated");

callBack();

}, 3000);

}

function getStudents() {

setTimeout(function(){

var str = "";

students.forEach(function(args){

str = str + `<li>${args.name}</li>`

});

document.getElementById('name').innerHTML = str;

console.log("Hey showing Students");

}, 1000)

}

var jayega = {name : "pradeep", subject : "Android"}

setStudents(jayega, getStudents);

</script>

</body>

</html>

yaha par setStudent getStudent ko rok kar rakhega jabtak ki wo khud execute nahi ho jata

Tuesday, October 19, 2021

Setting cookies with javascript

document.cookie

//It will show all the cookie stored with refrence to website

to Set Cookie

document.cookie = "name=atul";

document.cookie = "age=12";

document.cookie

'name=atul;age=12' //Cookie will be in String Form

add split function to split it in the form of array;

Copy Text By clicking on Button

1. First of all create input type text add attribute readonly="readonly" to it

2.Get that input element by id or whatever ex. x = document.getElementById("toCopy");

3. Add x.select(); function to select the text inside the input element

4. Call document function ex : document.execCommand("copy");

Here we go selected text at line number 3 will be copied

document.getElementById("toCopy");

document.getElementById("toCopy").select();

undefined

document.getElementById("toCopy").sele

undefined

document.getElementById("toCopy").select();

undefined

document.execCommand("copy");

true

Setting Cookie with javaScript and reading

<!DOCTYPE html>

<html>

<head>

<title>

</title>

</head>

<body>

document.cookie = "name=autl";

document.cookie = "course=bca";

document.cookie = "age=21";

console.log(document.cookie);

var x = document.cookie;

var y = x.split(";");

console.log(y);

y.map(function(args) {

t = args.split("=");

console.log(t);

})

</script>

</body>

</html>

Monday, October 18, 2021

LocalStorage JavaScript

<!DOCTYPE html>

<html>

<head>

</head>

<body>

//Add Key Value pair inside local Storage

localStorage.setItem('Name', 'Atul');

localStorage.setItem('Name2', 'Atul2');

//Getting an item from the local Storage

let name = localStorage.getItem('Name');

//Clears the entire local Storage

// localStorage.clear();

console.log(name);

//Removing A single item from Storage key value pair

localStorage.removeItem('Name2');

//Adding Array to localStorage...Normally if you save Browser will convert it into string

let impArray = ['Adrak', 'Pyaz', 'bhindi'];

localStorage.setItem('Sabji', JSON.stringify(impArray));

//Getting that saved Array String and converting it to normal Array

let x = localStorage.getItem('Sabji');

let y = JSON.parse(x);

console.log(y);

//['Adrak', 'Pyaz', 'bhindi'] now we can performe all operation related to JS Array

//Array ke sath fayeda hoga string manipulation mein

//Clearing all localStorage

localStorage.clear();

</script>

</body>

</html>

Code

Sunday, October 24, 2021

Call Back Functions in Javascript

Tuesday, October 19, 2021

Setting cookies with javascript

Copy Text By clicking on Button

Setting Cookie with javaScript and reading

Monday, October 18, 2021

LocalStorage JavaScript

Priority queue deleting elements after ascending inputs Gaand Fadd

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