有没有一种聪明的方法可以从代码中检查asm.js是否处于活动状态？

Question

有谁知道一种不用依靠浏览器版本而仅仅假设它可以工作的JavaScript方式吗？

Answer 1

As per the question linked by James Donnelly above, calling toString() on methods exported from asm.js modules will return

'function method() { [native code] }'

if the module has been compiled successfully and the JS source otherwise.