367 What's the best way to store a key=>value array in javascript, and how can that be looped through? The key of each element should be a tag, such as {id} or just id and the value should …

Since we are guaranteed that each of the so iterated array items is itself a two-entry array, we can use destructuring to directly assign variables key and value to its first and second item.

Here is my object literal: var obj = {key1: value1, key2: value2}; How can I add field key3 with value3 to the object?

storing key value pairs in an array in javascript Asked 7 years ago Modified 7 years ago Viewed 12k times

May 4, 2017 · Convert arrays to key value pair Asked 8 years, 5 months ago Modified 2 years, 11 months ago Viewed 23k times

Nov 15, 2016 · ES6 has the find-function for arrays: var val = options.find(function(o){ return o.key==="select" }).value; And maybe wrap it in a function of your own to make it a bit more …

Given a JavaScript object, how can I convert it into an array of objects (each with key, value)?

This does not create a "normal" JavaScript object literal (aka map, aka hash, aka dictionary). It is however creating the structure that OP asked for (and which is illustrated in the other question …

The structure of this array is fixed and I know for a fact that I'll always have key and value as the fields in each object in the array. When I try to validate the form submitted (additional server …

Jul 8, 2009 · How do I check if a particular key exists in a JavaScript object or array? If a key doesn't exist, and I try to access it, will it return false? Or throw an error?