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Performance 的 toJSON() 方法是一个标准的串行器：它返回一个由 performance 对象各个属性组成的 JSONSyntax
myPerf = performance.toJSON()
Arguments
- None
Return value
- myPerf
Performance对象序列化之后转化成的 JSON 对象。
Example
var js;
js = window.performance.toJSON();
console.log("json = " + JSON.stringify(js));
Specifications
| Specification | Status | Comment |
|---|---|---|
| High Resolution Time Level 2 toJSON() serializer |
Candidate Recommendation | Defines toJson(). |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome Full support 65 | Edge Full support Yes | Firefox Full support 25 | IE ? | Opera No support No | Safari No support No | WebView Android Full support 65 | Chrome Android Full support 65 | Edge Mobile Full support Yes | Firefox Android Full support 25 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown