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Subtraction

The subtraction operator (-) subtracts the two operands, producing their difference.

Syntax

Operator: x - y

Examples

Subtraction with numbers

5 - 3     // 2
3 - 5     // -2

Subtraction with non-numbers

'foo' - 3 // NaN

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Subtraction (-) 1 12 1 3 3 1
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
Subtraction (-) 1 18 4 10.1 1 1.0
Server
Node.js
Subtraction (-) 0.1.100

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Subtraction