I need to find an index of element inside its container by object reference. Strangely, I cannot find an easy way. No jQuery please - only DOM.  UL  LI  LI  LI - my index is 2  LI   Yes, I could assign IDs to each element and loop through all nodes...
If possible, can I click on an element in an iframe and have that perform a function on the page it is rendered on?  for example:  <div class="page">      <iframe class="frame">[... the source will render: <div class=&#...
I can get the count of all descendants of an element, but I can't seem to target just the immediate children. Here's what I have at the moment.  var sectionCount = document.getElementById("window").getElementsByTagName("section...
I'm trying this out:  var child = spawn('node', args, {cwd: parentDir, stdio: 'ipc'} );   (args is an array of parameters)  but it gives the following error:      TypeError: Incorrect value of stdio option: ipc   This actually wor...
I'm having trouble passing a prop from a parent down through a created child using CreateElement/render in vue.js and then watching it.   Here is my parent component  Vue.component('my-drawing', MyDrawing)  new Vue({   el: '#drawing&#...
I cant figure out why this won't work. Is there something wrong with this code? The function is being called I checked with an alert but it just won't close the window.   $('#click').click(function() {    var win = window.open("te...
I'm passing a root prop (object called "columnCollapsed") to a child component called "data-row" (see below) but it shows as undefined. Could this be a scope issue? Its probably something simple - any help would be greatly appreci...
How can I check using JavaScript, if an HTML element is a child of a particular <div> element?  if (divElement == child){    // do something... }   EDIT: Thank you for the answers. I also had a similair question about descendants and found the...
I am developing an application that requires the value of multiple checkboxes.  I have nested lists containing checkboxes.  The current functionality is this:   When a parent is checked, all children are checked under it. When a child is checked, the...
Parent Component  import React, {Component} from 'react'; import NameContainer from '../nameContainer/index'   export default class Vishal extends Component {     constructor(props) {         super(props);         this.state = {...

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