If you want to update just the first property (without deleting the last property), you should do const new_obj = { ...obj, name: { ...obj.name, first: 'blah'} }. This spread operator with an object works …

You would have to transform the array into a Javascript object in order to use the syntax projects["jquery-ui"].desc. Would that be worth the effort only to get nicer syntax? I've updated …

Aug 21, 2017 · Create a function called changeEmail that takes in a user object and a newEmail string. Replace the user's current email address (assigned to the email property) with the …

In JavaScript, all attributes can be read, but only the value attribute can be changed (and only if the property is writable). ( ECMAScript 5 has methods for both getting and setting all property …

For readability, simplicity and execution speed, use the object literal method. The named values, in JavaScript objects, are called properties. Objects written as name value pairs are similar to: …

The trick is to make the object (or a parent element) invisible, change the data attribute, and then make the object visible again. In the code below, it is assumed that object_element is the …

Is there any way to modify a certain objects property (like the one I'm filtering out above) without creating new arrays and/or objects? Desired result: [{ bar: 1, baz: [11,22,33] }, { bar: 2, baz: …

Apr 3, 2025 · Define the object type by writing a constructor function. There is a strong convention, with good reason, to use a capital initial letter. Create an instance of the object …

Nov 29, 2020 · So today I would like to list out the ways to add, update and delete the properties from an object. One can add the property to an object by simply giving it a value. Like below …

Jan 7, 2025 · Modifying an object’s property in an array of objects in JavaScript involves accessing the specific object within the array and updating its property. Using the map () …