Quick Reference
The JavaScript Object.assign() method copies properties from one or more source objects to a target object.
<!-- html element to place output -->
<p id="my_output"></p>JavaScript:
// create target object
const person1 = {
firstName: "Johnny",
lastName: "Shay",
age: 12
};
// create source object
const person2 = {firstName: "Marty", lastName: "Shay"};
// assign source to target
Object.assign(person1, person2);
// display target
let text = Object.entries(person1);
document.getElementById("demo").innerHTML = text;Output
firstName,Marty,lastName,Shay,age,12JavaScript Notes:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- JavaScript variables are case sensitive (x is not the same as X)
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.