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这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。
GlobalEventHandlers.onselectionchange 属性表示当一个 selectstart 事件被触发，比如在页面上选中文字变化时，会执行绑定的事件处理器
Syntax
obj.onselectionchange = function;
Example
var selection;
document.onselectionchange = function() {
console.log('New selection made');
selection = document.getSelection();
};
完整例子请参阅Key quote generator demo.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Selection API GlobalEventHandlers.onselectionchange |
Working Draft | Initial definition. |
Browser compatibility
We're converting our compatibility data into a machine-readable JSON format.
This compatibility table still uses the old format,
because we haven't yet converted the data it contains.
Find out how you can help!
| Feature | Firefox (Gecko) | Chrome | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 43 (43)[1] 52 (52)[2] |
(Yes) | (Yes) | ? | 1.3 |
| Feature | Firefox Mobile (Gecko) | Android | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
onselectionchange |
43.0 (43)[1] 52.0 (52)[2] |
? | ? | ? | ? |
[1] This is implemented behind the dom.select_events.enabled preference, which defaults to false except on Nightly.
[2] This is now fully enabled on Firefox 52 release version.