I’m learning javascript on FreecodeCamp. And, the solution of my problem doesn’t help me more. We have to filter integers in an array which is saved in const variable. and I cannot understand really this part num % parseInt(num) === 0 ).map( (num) => Math.pow(num, 2) ); Why using parseint() met…
Tag: javascript
JS file gets a net::ERR_ABORTED 404 (Not Found)
I am trying to create a simple Io-web-chat. I recently wanted to seperate my <script> inside my html file to an external js file. this is my very simple folder structure: Relevant part of html file: Relevant part of index.js file: Relevant part of server.js file: I also tried putting my files in this pu…
Eslint glob (**) is not considering all directories recursively
I am using OSX, in my package.json file I have the script entry: “lint”: “eslint ./src/**/*.js” However, when I run npm lint only the 1st level of directories are being considered for linting, eg. ./src/dir/* not ./src/dir/nested_dir/*. I was under the impression that ** glob indicated…
OpenCV.js – detectMultiScale “This Exception cannot be caught”
I’m trying to use facial recognition via OpenCV.js, however when I call on the detectMultiScale() method of the CascadeClassifier object I receive the error: Uncaught 6446128 – Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_…
React suspense/lazy delay?
I am trying to use the new React Lazy and Suspense to create a fallback loading component. This works great, but the fallback is showing only a few ms. Is there a way to add an additional delay or minimum time, so I can show animations from this component before the next component is rendered? Lazy import now…
Cannot find module ‘@angular-devkit/schematics/tasks’
when I try to add @angular/material to my project I get this error. Using Angular Cli: 7.2.1, Node 11.6.0 Cannot find module ‘@angular-devkit/schematics/tasks’ Error: Cannot find module ‘@angular-devkit/schematics/tasks’ at Function.Module._resolveFilename (internal/modules /cjs/…
Uncaught TypeError: form.submit is not a function in form validate() function
when form submit and if validation triger true than its display error on form.submit(); Answer You most probably have a button or input in your form with id=”submit” and/or name=”submit” like this: This will change form.submit() to a field reference rather than a method call. You can v…
Material-UI: Uncaught RangeError: Maximum call stack size exceeded
I’m using the Dialog and Select components from Material-UI and React. Just an example: After clicking on the select, i’m getting this error from Modal.js: “Uncaught RangeError: Maximum call stack size exceeded. at HTMLDocument.Modal._this.enforceFocus (Modal.js?86a5:197)” Any ideas? A…
How to watch if a token gets registered in localStorage and change the value of a binded property accordingly?
Currently, whenever a user logs in using correct credentials, a token get saved in the local storage. Now I’m trying to hide signin and signup after the user logs in. The code I currently have works relatively alright, however, I noticed that when the user logs in, the signin and signup routes do not di…
How to call a parent function from a child – react-native
I’m struggling to find a solution to my problem , but i cannot find it anywhere . So my question is how to call a parent function from a child . The function has to be passed in a onPress={()} inside the child Parent.js Child.js } Answer This is a common mis-understanding, so you’re in good hands.…