For those looking for a practical solution, see: How to find event listeners on a DOM node when debugging or from the JavaScript code? EventListenerList was in some old draft of DOM 3 Events and was long removed from the spec. As far as I know, at least Gecko still doesn’t have anything like this … Read more
It probably makes the most sense to pass it as a property, but if you really need to get it programmatically, and from inside the component, you can wait for the component to mount, find its DOM node, and then look at its parent. Here’s an example: class Application extends React.Component { constructor() { super(); … Read more
It’s ok to change the lang property directly and you may do so changing the value of document.documentElement.lang For example: var newLang = ‘fr’; … document.documentElement.lang = newLang; // will set the lang property to ‘fr’
The documention is not wrong but you may misunderstand what a jQuery object is. The jQuery object is returned by the $() function. So $(“span[id$=’_TotalItemCost’]”) is one jQuery object which contains every span element selected. Using .each() will iterate over the elements contained in the jQuery object. This is why this is a DOM node … Read more
First of all you can only accomplish this if your frame and the page displaying it is within the same domain (Due to cross-domain rules) secondly you can manipulate dom and window objects of the frame directly through JS: frames[0].window.foo = function(){ console.log (“Look at me, executed inside an iframe!”, window); } to get your … Read more
As of the most recent Protractor (1.6.1 as of this writing), the syntax changed a bit: var row = results[randomNum].element(by.xpath(‘..’)); (use element() instead of findElement()).
Try using a ref in your template instead: <div id=’gallery-container’ #galleryContainer class=”gallery-image-container”> <div class=”gallery-padding”></div> <img class=”gallery-image” src=”https://stackoverflow.com/questions/39256703/{{ coverPhotoVm }}” /> <img class=”gallery-image” src=”{{ imagepath }}” *ngFor=”let imagepath of imagesVm” /> </div> And use the ref name as the argument: @ViewChild(‘galleryContainer’) galleryContainer: ElementRef; EDIT Forgot to mention that any view child thus declared is only available … Read more
Using the Web Inspector (F12), go to the Elements tab, right click on the <html> tag in your code and select Copy->Copy outerHTML. Then paste that into a new file and save.
var $this = $(myObject); $this is a jQuery object. You can create jQuery objects from DOM elements. <tr onclick=”changeStatus(this)”> function changeStatus(myObject) { $(myObject).removeClass(); } I would like to recommend doing your event binding with jQuery as well: <tr class=”change-status”> $(‘.change-status’).on(‘click’, function () { $(this).removeClass( … ); }); This is nice because now all the JS … Read more
I’m a React dev. I’ll answer each of your questions: React does not care if DOM is moved around between updates as long as you put it back in componentWillUpdate. True — React doesn’t look at the DOM except when updating, with the exception of event handlers: React event handlers will still work on elements … Read more