so in ES6 there is .constructor.name which can be used on any object to get its class name. Is there something in ES5 that can do that? (Note: Before commenters mention to Upgrade the Browser etc., this question is about…
Currently I have the following code - var questions = ['1', '2', '3', '4', ..., 'n']; var qAsked = []; // array of indexes of already asked questions // the code below is executed multiple times if (typeof $qAsked ==…
In an interview, I was asked the question as described in the title. I think the interviewer wanted to ask about the underlying principles of property accessors in js. So what I want to know is the perfemance and principles…
How do I search across array of objects when I want to search across certain fields when passed to a function as an array. For example: const src = [ { id:1, name: "name1", age: 25}, { id: 2, name:…
I have an array of objects containing information about city and state. My array of objects look like this: Sample Input "stateProvinces": [ { "cities": [ { "code": "T001","citydescription": "Chennai" }, { "code": "T002","citydescription": "Madurai" } ], "statecode": "TN" },…
I'm trying to sort only a subset of an array, the subset is a filtered version of that array, and I need the whole array (with the subset sorted ) as a result. Here is the main array : var…
How to batch group of array elements in reference to another array of group size ? I tried below code. Code: var group_size = [1, 3, 5]; var elements = ['a','b','c','d','e','f','g','h','i','j','k','l']; var output = []; for (var i=0; i <…
I have an array of object that look this, const data = [ { key: "id1", name: "Category 1", curr: 0, total: 0, nodes: [ { key: "id2", name: "Applications", curr: 20, total: 30, nodes: [ { key: "id3", name:…
I have two Data formats and need to compare them. But the prbolem is in 2nd format the Day(Mon, Tue) is in value and in 1st format it is in Variable side, So how I can compare the day. I…
I have a an array of objects in this format: const myArray = [ { one: 'A', two: 'AB' }, { one: undefined, two: 'AB' }, { one: 'A', two: 'BC' }, { one: undefined, two: 'CC' }, ] I…