Javascript Auto run a function

Question

I want my function "thing()" to run automatically from the page load. At the moment it is activated by a button.

HTML

<button onclick="thing()">Greeting</button>

Javascript

function thing() {
  var greeting;
  var time = new Date().getHours();
  if (time < 10) {
    greeting = "Good morning";
  } else if (time < 20) {
    greeting = "Good day";
  } else {
    greeting = "Good Evening";
  }
  document.getElementById("address").innerHTML = greeting;
}

I am very new to java script so as simply please.

http://stackoverflow.com/questions/9899372/pure-javascript-equivalent-to-jquerys-ready-how-to-call-a-function-when-the — Jayesh Goyani, May 12 '15 at 11:52

score 0 · Answer 1 · answered May 12 '15 at 11:51

0

window.onload = thing();

will run the function automagically!!

answered May 12 '15 at 11:51

Akshay Khandelwal

1,570
11
19

2

should be more correct writing `window.addEventListener('load', thing);` as there may be more than one function to run – Jack May 12 '15 at 11:53
`window.onload = thing();` Didnt Work But `window.addEventListener('load', thing);` did. Thanks – lesquishy May 12 '15 at 12:08
It doesn’t work because `windows.onload = thing()` assignes the *result* of calling `thing()` to `window.onload`. – bfontaine Nov 21 '15 at 21:14

Javascript Auto run a function

1 Answers1