Quick Reference
The Window setTimeout() method calls a function after a number of milliseconds.
<!-- html element to place output -->
<p id="my_output"></p>The following sets a timer that will place a greeting on the page after 3 seconds (3000ms).
// timer
let my_timeout = setTimeout(my_greeting, 3000);
// place time on the page
function my_greeting() {
document.getElementById('my_output').innerHTML = 'Hello World';
}Output
Hello WorldSyntax
setTimeout(function, milliseconds, param1, param2, ..., etc.)Parameters
| Parameter | Description |
|---|---|
| function | The function to be executed (required) |
| milliseconds | Number of milliseconds to wait before executing (default value is 0) |
| param1, param2, ..., etc. | Additional parameters, if any, to pass to the function |
JavaScript 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
- 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 _
- JavaScript variables are case sensitive (x is not the same as X)
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.