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@bendc
Created August 25, 2016 08:05
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Test if ES6 is ~fully supported
var supportsES6 = function() {
try {
new Function("(a = 0) => a");
return true;
}
catch (err) {
return false;
}
}();
@cai-zhuo
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cai-zhuo commented Mar 6, 2023

@triblondon Yup, the critical test is the a = 0 (all browsers supporting default parameters have a fairly complete support of ES6 -- for example, Edge 13 will be rejected by this test despite a decent ES6 coverage).

I wanna know how to prove “all browsers supporting default parameters have a fairly complete support of ES6”
Thankfully, if you can show links or refs

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