How to use a variable in JavaScript command?

Question

Consider a simple JS function as

function test(property, color) {
    var element = document.getElementById("test");
    element.style.PROPERTY = color; // I want to use a variable for this command
}

In a typical JS command of element.style.PROPERTY, I want to introduce the property as a variable. This is a very basic example; what is the best approach to use variables in JS command lines?

possible duplicate of Javascript Objects: Dynamic variable names? — epascarello
– epascarello, Commented Jun 21, 2012 at 3:22

zerkms · Accepted Answer · 2012-06-21 03:16:58Z

3

Use it as:

element.style[property]

This is a very basic example; what is the best approach to use variables in JS command lines?

It depends on what you want to achieve. In this case - just use [...]

answered Jun 21, 2012 at 3:16

zerkms

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1 Comment

Ry- Over a year ago

And, of course, .replace(/-(.)/g, function(a, b) { return b.toUpperCase(); }) for all those quirky hyphenated properties! And then, cssFloat. And then, -ms prefixes.

craigforster · Accepted Answer · 2012-06-21 03:18:14Z

1

element.style[property] = color; should work.

answered Jun 21, 2012 at 3:18

craigforster

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