I need to convert hex into binary using javascript. example: 21 23 00 6A D0 0F 69 4C E1 20 should result in: 0010000100100011000000000110101011010000000011110110100101001100 Does anyone know of a javascript library I might use to accomplish this? Harriet Answer You can create a function converting a hex number to binary with something like this : For formatting you just fill
How to add external JS scripts to VueJS Components?
I’ve to use two external scripts for the payment gateways. Right now both are put in the index.html file. However, I don’t want to load these files at the beginning itself. The payment gateway is needed only in when user open a specific component (using router-view). Is there anyway to achieve this? Thanks. Answer A simple and effective way to
How to properly use Object.setPrototypeOf()
So I’ve been getting up to speed on some of the newer features of JavaScript and have been reading about Object.setPrototypeOf(). I ran across this bit of code from MDN which deals with inheriting from regular objects. But I’m confused at how they use Object.setPrototypeOf() here. I expected them to write as opposed to what the do below. Why do
CSS convert gradient to the canvas version
I have a gradient that I need to apply to a canvas. I need help to convert this to the canvas API; I don’t have a clue how to do it. maybe there is an online tool? Answer Here is how you can convert the CSS gradient to canvas version …
Why does this JSX expression produce an odd result?
I was playing around with JSX when I found this oddity. Using the following JSX: Will produce the correct result: But I wanted to add double quotes around the quote, so I tried: Which, to my surprise, gave the correct output: I was expecting an output similar to this since it was a string literal: Why doesn’t it give me
Vue.js run a code in mounted and again for restart functionality
I am creating a game in VueJS, where, when the page loads, I want a method to fire, make an ajax call to an external API and create a bunch of data properties. When the player wins the round, I want to them to be able to see a button that allows them to restart the game. I am using
How to change the behaviour of a mocked import?
I am quite confused with mocking in Jest an how to unit test the implementations. The thing is i want to mock different expected behaviours. Is there any way to achieve this? as imports can be only on the top of the file and to be able to mock something it must be declared before the import. I have also
Vue js error: Component template should contain exactly one root element
I don’t know what the error is, so far I am testing through console log to check for changes after selecting a file (for uploading). When I run $ npm run watch, i get the following error: “Webpack is watching the files… 95% emitting ERROR Failed to compile with 1 errors 19:42:29 error in ./resources/assets/js/components/File.vue (Emitted value instead of an
Programmatically cause onBlur to trigger in react
I use onBlur to close a dropdown, but I also want to handle a click handler of an li which is render within, setState won’t work here, the behavior is broken when user try to open the dropdown again, try it here: http://jsfiddle.net/ur1rbcrz My code: Answer Your code is not working because, even though you click li, a div container
Check if an array is descending, ascending or not sorted?
I’m just beginning with programming using javascript and I need to practice some questions to get EXP with the logic of code build. I got this question for homework but I can’t make it work for some reason, even though it seems “logic” to me. Check if an array is descending, ascending or not sorted using loops. I’m just a