const myFunc = (callbackFunc) => { let value = 50; callbackFunc(value) }; myFunc(value => { console.log(value) }) I do not understand how and why this block of code runs, my main issue is with the 'callbackFunc' parameter which has been…
Given an array of integers arr and a target sum target, find all pairs of distinct integers that add up to the target sum. Return an array of arrays containing these pairs sorted in ascending order. If there are no…
I want data in a widget to be updated by calling setState() in the widget from another file which retrieves the updated data from a database (Please note that the displayed code is heavily reduced to only display my problem).…
In JavaScript, I have an array containing boolean values and integer numbers, eg [1, true, 2, false, 3] I want to get an array with the boolean values removed. I tried > [1, true, 2, false, 3].filter(Number) [ 1, true,…
I have a problem. Two buttons with class .sert_btn should toggle classes of images. The left button works in a right way, but the rigth one doesn't. HELP PLS class passive - display: none; I tried another constructions for $(document),…
Sorry for the poorly phrased question. I came across this code when trying to understand how to maintain state across different function calls in javascript, and I don't understand its behaviour. It seems like it is returning a function, not…
I'm trying to Transform Array values using the map method and print out values using the console. function transformToObjects(numberArray) { return numberArray.map((number) => { return { val: number }; }); } I tried to print out the array values using…
I have tried to create a function for each input submit. The first input is for sum, the second for subtraction, third division and fourth multiplication. When I click on input (id="soma"), the console shows that soma() is not a…
HTML I was sure I was on the right track, but for some reason the code of javascript doesn't work and doesn't remove the second link, can someone help me please? <div class="p-4"> <h4 class="font-italic">Altro</h4> <ol class="list-unstyled"> <li><a href="#">GitHub</a></li> <li><a…
I'm using the following js file in the following manner to achieve the read more functionality in the Product Category description in woocommerce. function myFunction() { var dots = document.getElementById("dots"); var moreText = document.getElementById("more"); var btnText = document.getElementById("myBtn"); if (dots.style.display…