I need to get a dynamic value in the document.getElementById in Javascript.
However, when I put a variable it does not work, like so:
var = myVar;
myVar = 'test';
document.getElementById(myVar);
How can I implement this?
Many thanks
3 Answers
Your syntax is wrong.
This:
var = myVar;
should be:
var myVar;
So you'd have:
var myVar;
myVar = 'test';
document.getElementById(myVar);
Then you can place the code in an onload to make sure the element is available.
Example:
window.onload = function() {
var myVar;
myVar = 'test';
var element = document.getElementById(myVar);
alert(element.innerHTML);
};
It will work properly if you do it after the element has rendered, either by adding it in a callback on window.load, DOM ready, or put the script after the element in the HTML.
window.onload = function() {
var el = 'bla'; document.getElementById(el).style.display='none';
}
Were you supposed to have that equals? It should be:
var myVar = 'test';
document.getElementById(myVar);
