CSSOMString is used to denote string data in CSSOM specifications and can refer to either DOMString or USVString. When a specification says CSSOMString, it is left for the browser vendors to choose whether to use DOMString or USVString. While browser implementations that use UTF-8 internally to represent strings in memory can use USVString when the specification says CSSOMString, implementations that already represent strings as 16-bit sequences might choose to use DOMString instead.
| Browser | DOMString or USVString for CSSOMString |
|---|---|
| Firefox (Gecko) | USVString |
| Chrome (Blink) | USVString |
| Safari (WebKit) | USVString |
| Edge (EdgeHTML) | - |
| Opera (Blink) | USVString |
| Specification | Status | Comment |
|---|---|---|
| CSS Object Model (CSSOM) The definition of 'CSSOMString' in that specification. | Working Draft | Initial definition. |
CSSOMDOMStringUSVStringStringView – a C-like representation of strings based on typed arrays
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSOMString