Jest has this feature to log the line that outputs to console methods. In some cases, this can become annoying: Any idea how I can turn it off? Answer None of the above options worked for me. The (current) simplest solution is this: 1: Create a file with this code (e.g. config.js) 2: Add this line to your jes…
Tag: javascript
Getting empty string or null value from textbox
I am trying to test a simple <input> item and then print the contents to the console. I have a textbox and will insert some text with then hoping to see the data printed to the console but this is not happening. I am actually trying to test a more complicated item with the <input> being JSON and t…
JavaScript AES encryption and decryption (Advanced Encryption Standard)
How to implement encryption and decryption using AES (Advanced Encryption Standard) in JavaScript. Why AES (Advanced Encryption Standard) ? Security: Competing algorithms were to be judged on their ability to resist attack, as compared to other submitted ciphers, though security strength was to be considered …
How to clear v-model used with a select when options change
I have a cascading select (two part select) where the options in the second dropdown are determined by the value of the first dropdown. I do this by having a computed property which is based off of the first select. This then feeds the options into the second select. This mostly works fine. The problem I̵…
opencv.js perspective transform
I’m trying to use opencv.js to find a document in a provided image (detect edges, apply perspective transform, etc. I’ve got a reasonable set of code that (occasionally) detects edges of a document and grabs the bounding box for that. However, I’m struggling to do the perspective transform s…
Show fetch results in render return() in React.js
My question is about how to show array results in render return(). I made a fetch to the API and now I get results that get stored in a array. I need to show this results but I tried with a for{} inside the return and it doesn’t work, and I also tried with .map and the map is undefined.
React –> Warning: validateDOMNesting(…): cannot appear as a descendant of
I’m getting this warning in browser console: on line: It’s a react project. Also I’m using webpack. How to solve this problem? Answer The warning tells you what exactly you need to do. You cannot nest <p> tags and hence use div for the outer tag like
ThreeJS Hemisphere
This is quite possibly a very simple question, so apologies in advance. I’m trying to make a 3D hemisphere in ThreeJS. I can create a hemisphere (in case I’m using the wrong word, a sphere, cut in half!) outer using the Circle or CircleBuffer geometry, but this leaves the flat side ‘empty’ for lack of a bette…
Click-and-edit text input with Vue
I’m looking for a click-and-edit Vue component. I’ve found a fiddle and made some edits. It works like this: The fiddle is here. The problem: I need an additional click to make the input focused. How can I make it focused automatically? The code from the fiddle. HTML: JS: Answer You can use a dire…
require.cache equivalent in ES modules
ES Modules docs states: require.cache is not used by import. It has a separate cache. So where’s this separate cache? Is it accessible after all? I’m looking for invalidating module caching as it can be done in CommonJS modules (node.js require() cache – possible to invalidate?) Answer I saw…