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Tag: javascript

ECMAScript 6: what is WeakSet for?

The WeakSet is supposed to store elements by weak reference. That is, if an object is not referenced by anything else, it should be cleaned from the WeakSet. I have written the following test: Even though my [1, 2, 3] array is not referenced by anything, it’s not being removed from the WeakSet. The cons…

Html2canvas image capturing issue with UTF-8 characters

I want to capture my webpage, In order to this I find html2canvas, when I use as shown below ,my UTF-8 (persian) characters get in trouble and this direction destroyed as you see. HTML: JavaScript: WebPage: Captured WebPage via html2canvas: you can see full example here What is wrong with my implementation? A…

Fixing greyed-out .owl-carousel div

I’m making a call to get a page (getresult.php) through AJAX. The ID div in my index: My footer: The script for calling getresult in the footer: Now this is my page getresult: My problem is the carousel class doesn’t work. When I remove the class owl-carousel, I can see the pic. I have the CSS and…

D3js find closest point on circle

what I’m trying to achieve is to take the current coordinates of a mousemove event and match them with the coordinates of the closest location on a circle. I’ve managed to get this partially working using a for loop which iterates over each possible point in the circle and compares the coordinates…

Use Promise to wait until polled condition is satisfied

I need to create a JavaScript Promise that will not resolve until a specific condition is true. Let’s say I have a 3rd party library, and I need to wait until a certain data condition exists within that library. The scenario I am interested in is one where there is no way to know when this condition is …

collapsing/expanding compound node in cytoscape

Does cytoscape.js support collapsing/expanding compound node ? After collapsing A (+) or (-) sign to expand/collapse would be great. Looking for options to Group a set of nodes using Compound node and collapse/expand via user-interaction. If cytoscape.js doesn’t support this by-default, any alternatives…

Pre-loader Image at page load issue

I am sorry for asking a very minor thing but I feel a bit helpless in this one. I have integrated a pre-loader image at my page load in a very simple way This is my Page link HTML: (Div for loading Pre-loader image) Jquery to trigger the pre-loader on page load A bit of Styling . CSS Problem When