javascript edu

I'm trying to write a simple portscan script in nodejs. You can run this script against scanme.… Read more Portscan In Node Doesn't Work If Port Range Is Too Wide

I am trying to take form input of type date and display it on page. Nothing is being displayed when… Read more How Can I Collect Form Input In Date Format And Display It On Page

In HTML webpage, the content within noscript tags are not getting rendered by browsers with script … Read more In Html Webpage, The Content Within Noscript Tags Are Not Getting Rendered By Browsers With Script Blocking Extension

In the following code there are two categories and I want to show custom icon instead of marker by … Read more Add Custom Icon By Category On Google Map Marker

I feel like an idiot, but I need to filter my array, and then map those values, but thats O(2N) and… Read more Array Filter And Map At The Same Time?

I have a react app in which I have added unit testing, but one of my tests fails, Here is my test f… Read more Testing React App With Jest And Enzyme Token Problem

I have a working NodeJS API using Express. I am confused how to properly pass in a parameter from N… Read more Pass A Nodejs Express Object To Angularjs 1.6

import functions from 'firebase-functions'; import UtilModuler from '@utilModuler' … Read more How To Use Es6(esm) Imports/exports In Cloud Functions

I am fairly new to Backbone and have the following question: I have a collection of models. I have … Read more Backbone Change Model Of View

I am currently making a navbar and came accross the aria-expanded html attribute. I know of course … Read more Aria-expanded Html Attribute

This is the code to get temperature of London from Open weather API. It works fine Solution 1: Use… Read more Using Bootstrap Popover To Show Result In It

I would like a add a 1-2 second delay on each iteration of the following loop. Read more How To Slow Down A Javascript Loop

i don't seem to find any way to work this out..so i guess i m going to need some help.. i m mak… Read more Turn A Div Into A Button Dynamically

I'm trying out requireJS in order to improve the loading of Javascript on an ASP.NET MVC app, u… Read more Load Standard Javascript Files With Requirejs

When i am doing XMLHttpRequest to https server with not valid certificate React Native throws excep… Read more React Native Xmlhttprequest Request Fails If Ssl (https) Certificate Is Not Valid

Is there a way to add 'hidden' non-enumerable properties to a JavaScript object that works … Read more How To Add Non-enumerable Property In Javascript For Ie8?

On the following answer to a previous question someone mentioned an 'auto-casting bool' I g… Read more What's An "auto-casting Bool"?

I'm using Angular Google Maps to include a map in my web app. I am listening to the drag event … Read more Google Maps Drag Event Doesn't Capture Center Change Until Dragging Ends In Chrome Device Mode

I currently have a variable $return which contains JSON-encoded data, which prints out as: ({0:{dat… Read more Accessing Specific Json Value

My goal is to get the previous value inside my input element labeled 'SERIAL END' then auto… Read more How To Access Parent Element And Then Get It's Value And Then Append To Other Element When Adding A Row?

First off, sorry for the weird title, I don't really know a better way of describing it. Basica… Read more How To Make Image Change Color While Mouse Is Moving Over?

My data structure will look like this: var tree = [ { id: 1, children: [] }… Read more How To Build The Path To Each Node In A Tree Recursively - Javascript?

When I read JavaScript The Definitive Guide, section 9.3, I encountered this: Class methods The… Read more Are Class Methods Supported In Javascript?

I upgraded my project from angular 6 to angular 7. I have a file upload component in my project. It… Read more Error After Updating To Angular 7. Argument Of Type 'string | Arraybuffer' Is Not Assignable To Parameter Of Type 'string'

I would navigate to a sub component in my app. this.router.navigateByUrl(this.rightsService.pathToR… Read more Navigatebyurl From Parent To Child Route Not Working

How can you find the centroid of a concave irregular polygon given its vertices in JavaScript? I wa… Read more How Can You Find The Centroid Of A Concave Irregular Polygon In Javascript?

I have the following html: Morbi quis augue vitae quam pharetra| varius at at| urna. The selecti… Read more With Rangy, Even Though I Extend The Range By Setstartbefore Method, Range.cansurroundcontents Method Still Returns False

I'm following a tutorial to update states in ReactJS. I came across this line in the tutorial t… Read more Reactjs Bind(this)

I need to be able to fetch an email address from the user and then use php to send them an email wi… Read more Simple Way To Send Email With Javascript And Php

I'm trying to get my head around this i have an array with nested arrays like so var array = [ … Read more Filter Array Of Array For Values Inside Nested Array

For a program the import headers are showing errors. From where can i download the importing packag… Read more Where To Install The Import Modules Used In A Java Program?

I have created a button CSS class that uses background images with different positions to display … Read more Imitate "onselectstart=return False" Using Css Or Other Non-js Approach?

Find length of line 300* slower First of I have read the answer to Why is my WebAssembly function s… Read more Why Is Webassembly Function Almost 300 Time Slower Than Same Js Function

I am setting up a survey on Qualtrics. One question has a text box, in which participants shall wri… Read more Qualtrics Word Counter Javascript

Here's my problem, i have a php array like this: $output = array(array(1,1,1,1),array(2,2,2,2),… Read more How To Encode 2 Dimentional Php Array To Javascript Array?

I am using socket.io with angular. It works fine but my problem is that it emits to all the tabs op… Read more Socket.io Emit To Specific Client In Tabs

Suppose you have this for your HTML: I have some content that is good to read However you would l… Read more Add A Span Tag Inside P After Certain Amount Of Characters

I have just created a new web app using WebStorm; it comes with a template and I haven't added … Read more Error While Running A New Created React Js App In Webstorm

I'm trying to debug a JavaScript onFocus event attached to a bunch of text boxes on a page. Th… Read more Debugging Onfocus Event Using Chrome Developer Tools? Can't Return Focus After Break Point

I'd like to detect when a specific DOMNode is added to the document, from within the context of… Read more Using Mutationobserver To Detect When A Node Is Added To Document

I have a line of code as below app.system('cmd.exe python D:\project\PStest.py'); This is… Read more Make Photoshop Run System Command Through Javascript

I'm using Node.js and making multiple Asynchronous calls that I need to handle data with when t… Read more Multiple Asynchronous Callbacks - Using An Array To Fire Function When Complete

QPython3, Android 6.0; I guess JS cann't instance var droid = new Android(); Any hints to solve… Read more Qpython3 Problems With Javascript In Html Gui

Say I've selected a span tag in a large html document. If I treat the entire html document as a… Read more Record And Retrieve Html Element / Node Path Using Javascript

I'm trying to add another asynchronous call to the contract of an existing Deferred before its … Read more Jquery Deferred - Adding A Callback To The Deferred Contract

I'm trying to install Grunt on my project. It used to work perfectly, but now for some reason, … Read more Can't Install Any Npm Package, Error 4058

Here is the code in html to allow only one decimal point in a textbox: Read more Textbox Only Allow Floating Point Number

I have an object that looks like this var obj = { p1 : true, p2 : true, p3 : false } I am loo… Read more Javascript - Pass Object Via Post

I wanted to try out Brunch and am having some trouble getting my compiled JS files to execute in th… Read more Js Compiled By Brunch Does Not Run

I want to set GMT+5:30 as my timezone in jquery countdown. Start Time for countdown is 'Thu Ma… Read more How To Set Timezone In Jquery Countdown Timer

I have this object: var navArray = { '#item1' : 0, '#item2' : 1, '#item3&… Read more How To Iterate Over This Object

How can I make a function that returns only the numbers greater than the number that I entered? My … Read more How To Find The Largest Group Of Numbers In An Array And Return Them Separately In Javascript?

Basically I want to open a page with a button, and kill the page with another button. I think that … Read more Can I Save A Window Object Inside A Localstorage

Currently I have a code that highlights the words in a list if there is a match with this array. … Read more Highlight The Text Of A Span In Angularjs

I need to add multiple images for upload. Below is my form. In the form, if you kindly check run co… Read more Choose Multiple Images And Upload With Preview

How can I convert an UUID/GUID value like 8348d2c5-0a65-4560-bb24-f4f6bcba601d (that I genreated wi… Read more How To Convert Uuid/guid To Oid/dicom Uid In Javascript?

I want to use users data on authentication trigger. But when I am using them it gives me null. What… Read more On Authentication Triggers I Am Getting Displayname As Null

My mind has gone 100% blank on this so need some guidance please. Solution 1: Solution with jquery… Read more Jquery - Submit Form To Restful Url

I'm working on project which based on multitalency concept where users registered their domain … Read more Google Oauth Client-id For Multiple Site Multitalency Purpose

I've a backbone view that renders a search result in a underscore template. As I want to highli… Read more How To Pass Additional Variables In To Underscores Templates

I m using a javascript code that print a specific div.. This code is working fine but it shows a he… Read more Print A Specific Div Using Javascript

I want to style a form that has the label and input inside the form field and when I'll write s… Read more Css Focus On Child Element Change A Parent Element

Given the following script: Which apparently looks obfuscated (at least to me), should eventually … Read more Is This Deep Obfuscation? Cannot Understand The Meaning Of It

I've been implementing a useful subclass of the ES6 Set object. For many of my new methods, I … Read more What Is The Technical Definition Of A Javascript Iterable And How Do You Test For It?

Is there a known JavaScript regular expression to match an entire URL Connection String? protocol:/… Read more Regex For A Url Connection String

I am attempting to use angular-ui-router on an angular 1 project. The issue that I'm running in… Read more Angular Ui-router Works With Template But Not Component

I realise this question has been asked before but I can't get to the bottom of it. Here is my c… Read more Reorder Elements Of Svg ( Z-index ) In D3.js

Here's my code :- Read more Trying To Populate A Drop Down List With Jquery And Ajax