How can I convert seconds to HH:mm:ss? At the moment I am using the function below This works on chrome but in firefox for 12 seconds I get 01:00:12 I would like to use moment.js for cross browser compatibility I tried this but does not work What am I doing wrong? EDIT I managed to find a solution without mom…
Author: admin@master
javascript module pattern from You don’t know JS
I have been reading and testing below code out for several hours now and I just can’t seem to grasp certain things. I have been stepping through chrome console basically putting break in every line I can add and have been inspecting and I am just not sure of things 1)I am just not sure of the purpose of…
How to keep out of viewport leaflet polylines rendered at all times?
Whenever I move the view on my leaflet map, polylines whose centers are no longer in view are removed. I have a polyline with a large stroke size (~500px) that is not visible even when part of it …
Why JavaScript is not working in HTTPS on my site
I have just added HTTPS to my site and apparently the only script I have on my site has stopped working. I don’t think it is a problem of the script, but here it is: What is the solution to this problem? Answer Add your jQuery file like this, without mentioning the protocol explicitly: Removing the http…
Javascript function challenge add(1,2) and add(1)(2) both should return 3
A friend of mine challenged me to write a function that works with both of these scenarios My instinct was the write an add() function that returns itself but I’m not sure I’m heading in the right direction. This failed. So I started reading up on functions that return other functions or return th…
How to automatically zip files with Node.js and npm
Is there a way to automatically zip certain files at the build time with Node.js and npm? For example, I have a project, that file structure looks like this: I want to be able to zip lib folder, certain modules from node_modules and index.js into some zip archive to upload it on the AWS Lambda, for example. I…
Disable Jasmine’s fdescribe() and fit() based on environment
fdescribe() and fit() are great for reducing noise when you’re working on a subset of tests. I sometimes forget to change them back to describe()/it() before merging my branch into master. (It’s okay to have them in separate branch while working on code – i.e. a pre-commit check wouldn’…
How to unset a Javascript Constant in ES6?
I read this post, using delete keyword, we can delete JavaScript variable. But when I tried the same operations with constant but it is returning false when I try to delete constant. Is there any way to delete constants from memory? I tried this answer but its also not working. Answer You can’t directly…
Understanding Matrix in SVG
I need help in deep understanding of matrix in SVG. I already know about matrix, I want to rotate and scale without using scale or rotate word. I want to use transform=’matrix(a,b,c,d,e,f)’. I know ‘a/d’ value determine the scale, ‘e/f’ determines the position. tan(b),tan(c…
How to add custom html attributes in JSX
There are different reasons behind it, but I wonder how to simply add custom attributes to an element in JSX? Answer EDIT: Updated to reflect React 16 Custom attributes are supported natively in React 16. This means that adding a custom attribute to an element is now as simple as adding it to a render functio…