I have an object obj; and I then obtain an array arr of key-value pairs. Assuming that the key sets of obj and of arr are disjoint (i.e. no key appears in both) - how do I efficiently add all pairs in ...

In JavaScript, when you do something like this, function connect() { var ws = new WebSocket(url); ws.onmessage = function(e) { window.alert(e.data); }; } it will work. But why ...

I’m working on a WordPress website using the Elementor Pro page builder, and I’m trying to integrate a custom-styled Google Map on the "Contact Us" page. What I’ve done so far: Created a ...

I'd like to have the loadConfig function async and just finish after the resource has been loaded. await fetchetc. How can I declare it in this object syntax as an async function? var QMEM = QMEM || { ...

I'm working on a JavaScript extension for WhatsApp Web, and I'm facing a problem I can't seem to solve. The goal of my extension is to correct and manipulate the text in the message input of WhatsApp ...

I have an object taken from the DOM who's actual offsetHeight I can not correctly get. When trying to console.log the object to check the property, it does show the correct offsetHeight. But when I ...

I found some odd things and am looking for explanations as to how and why let a = [] ; a.push({foo:"bar",bar:"foo"}] ; console.log(a) ; As expected, prints out: [[object Object] { ...

So I wrote up this helper function when I first started my project to help update objects that I would get from an API. export const setValRecursive = (currObj: any, newObj: any) => { Object.keys(...

I have a set of objects, that contain references to other objects. There is always a general reference: nextObject. But sometimes, I know more about the object beside me. So I could use a member ...

I am implementing an extended class from Array with numerical methods such as sum, mean, std, etc. There is no problem to instantiate an object with zero or 2+ elements, but I can't implement one-...

I need to style specific elements by id using given object. Keys and values in projectSkillsMap object corresponds to ids in html file. When user clicks on element with id listed in object keys ...

I'm my scenario I have to create a lot of objects (100k+). Those objects can 'evolve' in the course if their life. Some will stay practically unchanged, others with will mutate and have a bunch of ...

I'm a newbie to Javascript. I wish to know how to get the key as 'personObj', 'carObj, 'workDetailsObj', 'displayFunction' and 'primitiveValue' and print those values in console? Also, how to print ...

const menuFilteredProducts = getMenuWiseProduct(products); const categoryFilteredProducts = getCategoryWiseProduct(products); let mergedProducts = []; const prioritizeCategory = true; if (...

I'm trying to use custom DOM events to communicate between the main world and the isolated world for a page in a webextension in Firefox. When trying to access an event object property, I get an ...