JS::ToInt32 编辑
This article covers features introduced in SpiderMonkey 17
Convert any JavaScript value to a signed 32bit integer.
Syntax
bool
JS::ToInt32(JSContext *cx, JS::HandleValue v, int32_t *out);
| Name | Type | Description |
|---|---|---|
cx | JSContext * | The context in which to perform the conversion. Requires request. In a JS_THREADSAFE build, the caller must be in a request on this JSContext. |
v | JS::HandleValue | The value to convert. |
out | int32_t * | Out parameter. On success, *out receives the converted floating-point value. |
Description
JS::ToInt32 converts a JavaScript value to a signed 32bit integer. It implements the ToInt32 operator described in ECMA 262-3 §9.5.
On success, JS::ToInt32 stores the converted value in *out and returns true. On error or exception, it returns false, and the value left in *out is undefined.
See Also
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论