socket.io cors

ByAnurag batra August 1, 2022June 30, 2022

const io = require("socket.io")(httpServer, 
  { 
  cors: {    
    origin: "*",    
    methods: ["GET", "POST"]  
  }});

Here is what the above code is Doing:
1. We’re importing the http module, which is a built-in Node module for creating HTTP servers.
2. We’re importing the socket.io module, which is a library for enabling real-time, bidirectional, and event-based communication between the browser and the server.
3. We’re creating an HTTP server using the http module.
4. We’re creating a socket.io server using the socket.io module.
5. We’re passing the HTTP server to the socket.io module.

how to create a form without a submit button javascript

Javascript Examples

how to create a form without a submit button javascript

ByAnurag batra July 14, 2022June 30, 2022

//you have to have the form tag in this format //from there you would have to create a function function myFunction() { document.getElementById(“myFunction”).submit(); } //if this does not work, start to pray lol and do a lot of digging in //the browser, good luck ! Here is what the above code is Doing: 1. The…

print multidimensional array javascript using loop

Javascript Examples

print multidimensional array javascript using loop

ByAnurag batra July 2, 2022June 30, 2022

let chunked = [[1,2,3], [4,5,6], [7,8,9]]; for(let i = 0; i < chunked.length; i++) { for(let j = 0; j < chunked[i].length; j++) { console.log(chunked[i][j]); } } Here is what the above code is Doing: 1. We have a for loop that iterates over the chunked array. 2. Inside the first for loop, we have...

get element of an array inside another array

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get element of an array inside another array

ByAnurag batra July 4, 2022June 30, 2022

let array=[[1,2,3], [“apple”,”mango”,”grapes”], [true true false]] //to get apple ===== arrayName[class][subclass] console.log(array[1][0]) Here is what the above code is Doing: 1. We have created an array named array. 2. We have created three sub-arrays inside the array. 3. We have printed the first element of the second sub-array.

Javascript Examples

angular create component without test

ByAnurag batra July 9, 2022June 30, 2022

ng generate component –skip-tests=true component-name Here is what the above code is Doing: 1. We are importing the Component decorator from the @angular/core library. 2. We are using the Component decorator to define the metadata of the component. 3. We are using the selector metadata property to define the CSS selector for the HTML template….

Javascript Examples

toggle text jquery

ByAnurag batra August 3, 2022June 30, 2022

$(“button”).click(function(){ $(this).text($(this).text() == ‘Show’ ? ‘Close’ : ‘Show’); }); Here is what the above code is Doing: 1. When the button is clicked, the text of the button is changed from “Show” to “Close” and vice versa. 2. The text of the button is changed by using the text() method. 3. The text() method is…

Javascript Examples

javascript find total number of classes

ByAnurag batra July 12, 2022June 30, 2022

document.getElementsByClassName(“ClassName”).length Here is what the above code is Doing: 1. We are using the getElementsByClassName() method to get all the elements with the class name “ClassName”. 2. We are using the length property to get the number of elements with the class name “ClassName”.

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