Feb 24, 2016 · for (var i in obj) { if (obj[i] === null || obj[i] === undefined) { delete obj[i]; } return obj; This is the actual question: Make a function that takes in an object, loops through all its …

Jun 1, 2015 · To remove those properties you can use this algorithm: for (k in myObj) { if (myObj.hasOwnProperty(k) && myObj[k] === false) { delete myObj[k]; } } If you are just …

Feb 7, 2018 · The answer to "can I do x to an object" (or an array for that matter) is usually "yes" and it frequently involves some form of reduce. If you want to filter falsy values you could do …

Apr 8, 2021 · Sometimes we want to remove null, empty, undefined, false value attribute from an object. we can do this using the below method. const removeFalsyElement = object => { const …

Mar 3, 2025 · Write a JavaScript program to remove all false values from an object or array. Use recursion. Initialize the iterable data, using Array.isArray(), Array.prototype.filter() and Boolean …

Jun 5, 2024 · Using Array.prototype.flatMap(), you can remove falsy values by mapping each element to an array containing the element if it’s truthy, or an empty array if it’s falsy. The …

To deeply remove all falsy values from an object or array, use the following algorithm: Use recursion to call the compactObject() function on each nested object or array. Initialize the …

May 10, 2016 · This method iterates over an object and removes all keys with falsy values. That is, falsy values will cause the key/value pair to be removed from the object. This is very useful …

Oct 12, 2020 · Learn how to iterate over an object in JavaScript and remove properties with false values. Step-by-step guide with examples.

Jul 1, 2015 · When you use for-in, the iteration variable is set to the property name, not the value (it's not like PHP foreach). You need to use user[prop] to get the value. Also, you should return …