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Author: admin@master

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

Javascript arguments shifting

Let’s assume that we have the following function: I understand that data and type are just references to specific values in arguments. But why in the end, data is equal to 3? Answer From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode#Making_eval_and_arguments_simpler: Stri…

Set tooltip on custom leafletjs control

I have made several custom buttons in Leafletjs – now I would like to add a hover-over tooltip to explain what the button does. I’ve tried putting a “title:” and “tooltip:” in the options but still do not see the text when I hover over the control. Answer To answer my own q…