Question Answer Forum

"Javascript" Topic Questions


How to npm install mongodb (Javascript Scripting Language)

Answer

1 npm   install   mongodb   -- save Source: .....

How to how to get selected value of dynamically created dropdown in jquery (Javascript Scripting Language)

Answer

1 $ ( select ). change ( function () { 2 console . log ( $ ( this ). children ( option:selected ). val ()); 3 }) Source: Tutorials .....

How to round decimal js (Javascript Scripting Language)

Answer

1 Math . round ( num * 100 ) / 100 Source: .....

What is xpath in javascript?

Answer

XPath uses path expressions to select nodes or node-sets in an XML document . These path expressions look very much like the expressions you see when you work with a traditional computer file system. XPath expressions can be used in JavaScript, Java, XML Schema, PHP, Python, C and C++, and lots of .....

How to how to make password visible in password javascript (Javascript Scripting Language)

Answer

1 2 3 4 <! DOCTYPE html > 5 < html > 6 < head > 7 < title > Toggle Password Visibility < /title> 8 < link rel = stylesheet href = https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.13.0/css/all.min.css > 9 < link rel = stylesheet href = css/style.css > .....

How to convertir lista a Json en Java (Javascript Scripting Language)

Answer

1 List < String > foo = new ArrayList < String > (); 2 foo . add ( A ); 3 foo . add ( B ); 4 foo . add ( C ); 5 String json = new Gson (). toJson ( foo ); Source: Tutorials .....

How to interact with flutter and javascript (Javascript Scripting Language)

Answer

1 < script type = 'text/javascript' > 2 Print . postMessage ( 'Hello World being called from Javascript code' ); 3 < /script> Source: Tutorials .....

How to wordpress not loading jquery (Javascript Scripting Language)

Answer

1 function include_jQuery () { 2 if ( ! is_admin ()) { 3 // comment out the next two lines to load the local copy of jQuery 4 wp_deregister_script ( 'jquery' ); 5 wp_register_script ( 'jquery' , 'http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js' , false , '1.8.3' ); 6 .....

How to javascript get query parameter (Javascript Scripting Language)

Answer

When you're working with JavaScript , sometimes you need to access query string parameters in your script There's no straightforward way .....

How to angular cli skip-tests (Javascript Scripting Language)

Answer

1 The name of the TypeScript configuration file for tests . Default : ... -- skipTests = true | false . When true , does not create spec.ts test files for the app . Default : false 2 While generating component using cmd 3 > ng g c component - name -- skipTests Source: Geeks For .....

How to javascript append how first element (Javascript Scripting Language)

Answer

1 // 2018+ Version 2 parentElement . prepend ( newFirstChild ) Source: Code .....

How to 9.4.1.1. Initial Expression¶ // Loop Examples (Javascript Scripting Language)

Answer

1 //This loop prints 3...9. 2 for ( let i = 3 ; i < 10 ; i ++ ) { 3 console . log ( i ); 4 } 5 //This loop prints each of the letters C, o, d, and e on a separate line. 6 let name = LaunchCode ; 7 for ( let i = 6 ; i < name . length ; i ++ ) { 8 console . log ( name [ i ]); 9 } 10 /*The loop .....

How to save jshint (Javascript Scripting Language)

Answer

1 npm i jshint -- save - dev Source: Tutorials .....

How to vuejs cant add script in template (Javascript Scripting Language)

Answer

1 < component is = script src = https://www.example.com/example.js async >< /component> Source: .....

How to check window resize javascript (Javascript Scripting Language)

Answer

“ check window resize javascript ” Code Answer's ; 1 //listen for window resize event ; 2 window addEventListener(' resize ', function(event){ ; 3 var newWidth .....

How to cypress graphql request example (Javascript Scripting Language)

Answer

1 describe ( 'my page' , () => { 2 beforeEach ( function () { 3 // Fetch fixtures. 4 cy . fixture ( 'allCars' ). as ( 'carsQuery' ) 5 }) 6 context ( 'mock & visit' , () => { 7 beforeEach ( function () { 8 cy . mockGraphQL ([ this . carsQuery ]) 9 cy . visit ( 'http://localhost:8080' ) 10 .....

How to js socket.emit (Javascript Scripting Language)

Answer

1 const socket = io ( 'ws://localhost:3000' ); 2 socket . on ( 'connect' , () => { 3 // either with send() 4 socket . send ( 'Hello!' ); 5 // or with emit() and custom event names 6 socket . emit ( 'salutations' , 'Hello!' , { 'mr' : 'john' }, Uint8Array . from ([ 1 , 2 , 3 , 4 ]));}); 7 // .....

How to jquery scroll to bottom (Javascript Scripting Language)

Answer

1 $ ( window ). load ( function () { 2 $ ( html, body ). animate ({ scrollTop : $ ( document ). height () }, 1000 ); 3 }); Source: Code .....

How to backtick in angular (Javascript Scripting Language)

Answer

1 //That is called Template literals and it's a javascript feature, 2 //it is not typescript specific. 3 //you can replace this: 4 const url = `${ this . heroesUrl }/${ hero . id }` ; 5 //With 6 const url = this . heroesUrl + / hero . id ; Source: Tutorials .....

How to how to remove a variable from an array javascript (Javascript Scripting Language)

Answer

1 let colors = [ red , blue , car , green ]; 2 //remove car from the colors array 3 colors . splice ( color [ 2 ]); // colors = [red,blue,green] Source: .....

What is jwt in javascript?

Answer

JSON Web Token is an open standard for securely transferring data within parties using a JSON object. JWT is used for stateless authentication mechanisms for users and providers, this means maintaining session is on the client-side instead of storing sessions on the .....

What is xmlhttprequest in javascript?

Answer

XMLHttpRequest (XHR) objects are used to interact with servers. You can retrieve data from a URL without having to do a full page refresh. This enables a Web page to update just part of a page without disrupting what the user is doing. XMLHttpRequest is used heavily in AJAX .....

What is setinterval in javascript?

Answer

setInterval() The setInterval() method, offered on the Window and Worker interfaces, repeatedly calls a function or executes a code snippet, with a fixed time delay between each call. This method returns an interval ID which uniquely identifies the interval, so you can remove it later by calling .....

What is esm in javascript?

Answer

ECMAScript modules , also known as ESM, is the official standard format to package JavaScript, and fortunately Node. .....

How to resize function in addEventListener JS (Javascript Scripting Language)

Answer

1 window . addEventListener ( 'resize' , function ( event ) { 2 ... 3 }, true ); Source: Geeks For .....

How to generate random password (Javascript Scripting Language)

Answer

How can I do this with JavaScript ? I've got the following script , but it doesn't meet my requirements var chars = .....

How to push items to associative array jquery (Javascript Scripting Language)

Answer

1 var arr = []; 2 arr . push ({ 3 key : value 4 }) Source: .....

How to countdown vue (Javascript Scripting Language)

Answer

1 < template > 2 {{ countDown }} 3 < button type = button v - on : click = countdown = 5 > setTimeout < /button> 4 < /template> 5 6 < script > 7 export default { 8 data () { 9 return { 10 countDown : 0 11 } 12 }, 13 method : {} 14 watch : { 15 countdown : function ( .....

What is class in javascript?

Answer

Classes are a template for creating objects. They encapsulate data with code to work on that data. Classes in JS are built on prototypes but also have some syntax and semantics that are not shared with ES5 class-like .....

How to error ng8001 'router-outlet' is not a known element (Javascript Scripting Language)

Answer

1 import { RouterModule } from '@angular/router' ; Source: Code .....

How to match regex (Javascript Scripting Language)

Answer

1 const regex = /([a-z]*)ball/g ; 2 const str = basketball football baseball ; 3 let result ; 4 while (( result = regex . exec ( str )) !== null ) { 5 console . log ( result [ 1 ]); 6 // => basket 7 // => foot 8 // => base 9 } Source: Tutorials .....

How to data type angular (Javascript Scripting Language)

Answer

1 let decimal : number = 6 ; 2 let hex : number = 0xf00d ; 3 let binary : number = 0b1010 ; 4 let octal : number = 0o744 ; 5 let big : bigint = 100n ; Try Source: Tutorials .....

How to double datatable turbolinks issue (Javascript Scripting Language)

Answer

1 var dataTable = $ ( '.data-table' ). DataTable (); 2 document . addEventListener ( turbolinks:before-cache , function () { 3 if ( dataTable !== null ) { 4 dataTable . destroy (); 5 dataTable = null ; 6 } 7 }); Source: .....

How to nangular make window available (Javascript Scripting Language)

Answer

1 import { Inject } from '@angular/core' ; 2 import { DOCUMENT } from '@angular/common' ; 3 export class MyClass { 4 constructor ( @ Inject ( DOCUMENT ) private document : Document ) { 5 this . window = this . document . defaultView ; 6 } 7 check () { 8 console . log ( this . document ); 9 console .....

What is dictionary in javascript?

Answer

A dictionary is a general-purpose data structure for storing a group of objects. A dictionary has a set of keys and each key has a single associated value. When presented with a key, the dictionary will return the associated .....

How to joi object id validation (Javascript Scripting Language)

Answer

1 npm i joi - objectid 2 const Joi = require ( 'joi' ); 3 Joi . objectId = require ( 'joi-objectid' )( Joi ) 4 // now you can use Joi.objectId to validate the post request sent by user Source: StackOverFlow Source: .....

How to regex for https url (Javascript Scripting Language)

Answer

1 https ? :\ /\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*) Source: .....

How to compare mongoose id (Javascript Scripting Language)

Answer

1 user . _id . toString () === request . params . id Source: Geeks For .....

How to channel info discord.js (Javascript Scripting Language)

Answer

1 // COMPLICATED SCRIPT DONT DISLIKE IF YOU CANT UNDERSTAND // 2 ​ 3 client . on ( 'message' , message => { 4 if ( message . content . toLowerCase () === prefix + 'channel' ) { 5 if ( message . author . bot ) return ; 6 if ( UtilCommandsDisable . has ( message . guild . id )) { 7 message . .....

How to node_modules/metro/src/lib/attachWebsocketServer.js (Javascript Scripting Language)

Answer

1 I tried following steps it resolves my issue 2 Running packager on different port react - native start -- port 8084 -- reset - cache 3 Run react - native run - android -- port 8084 in second Command Prompt window . 4 After error screen appear clicking Ctrl + M . 5 Click Dev Settings button at the .....

What is push in javascript?

Answer

push() The push() method adds one or more elements to the end of an array and returns the new length of the array . .....

How to instagram unfollow console code (Javascript Scripting Language)

Answer

1 setInterval ( 2 function (){ 3 var arr = document . getElementsByClassName ( _0mzm- sqdOP L3NKy _8A5w5 ); 4 for ( var i = 1 , len = arr . length ; i < len ; i ++ ) { 5 arr [ i ]. click (); 6 document . getElementsByClassName ( aOOlW -Cab_ )[ 0 ]. click (); 7 } 8 var scroll_stuff = document . .....

How to how to get the number of days in a month in javascript (Javascript Scripting Language)

Answer

1 // instantiate a date object 2 var dt = new Date (); 3 // dt.getMonth() will return a month between 0 - 11 4 // we add one to get to the last day of the month 5 // so that when getDate() is called it will return the last day of the month 6 var month = dt . getMonth () + 1 ; 7 var year = dt . .....

How to javascript validation on name (Javascript Scripting Language)

Answer

1 after submit , how it will be store in object Source: .....

How to defer parsing of javascript avada (Javascript Scripting Language)

Answer

1 function defer_parsing_of_js ( $url ) { 2 if ( is_user_logged_in () ) return $url ; //don't break WP Admin 3 if ( FALSE === strpos ( $url , '.js' ) ) return $url ; 4 if ( strpos ( $url , 'jquery.js' ) ) return $url ; 5 return str_replace ( ' src' , ' defer src' , $url ); 6 } 7 add_filter ( .....

How to npm material-ui (Javascript Scripting Language)

Answer

1 $ npm install @ material - ui / core Source: Geeks For .....

How to how to update my package.json (Javascript Scripting Language)

Answer

1 npm install - g npm - check - updates 2 / after install run following : 3 ncu - u 4 //Then this: 5 npm update Source: .....

How to spread operator in javascript (Javascript Scripting Language)

Answer

1 // spread operators can be used for arrays or objects 2 // cloning to prevent mutation. 3 let numList = [ 1 , 2 , 3 ]; 4 let numListClone = [ ... numList ]; // [1, 2, 3] 5 // spread operator for destructuring. 6 let animal = { 7 name : 'dog' , 8 color : 'brown' , 9 age : 7 10 }; 11 let { age , .....