我們的志工尚未將此文章翻譯為 正體中文 (繁體) 版本。加入我們，幫忙翻譯！
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The GlobalEventHandlers.onselectstart property represents the event handler that is called when a selectstart event reaches this object.
Syntax
obj.onselectstart = function;
functionis the name of a user-defined function, without the () suffix or any parameters, or an anonymous function declaration.
Example
document.onselectstart = function() { console.log("Selection started!"); };
Specifications
| Specification | Status | Comment |
|---|---|---|
| Selection API The definition of 'GlobalEventHandlers.onselectstart' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
| Feature | Firefox (Gecko) | Chrome | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 43 (43)[1] | 1.0 | 4 | ? | 1.3 |
| Feature | Firefox Mobile (Gecko) | Android | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
onselectionchange |
43.0 (43)[1] | ? | ? | ? | ? |
[1] This is implemented behind the dom.select_events.enabled preference, that default to false, except on Nightly.