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ECMAScript spec abstract operations.
github.com/ljharb/es-abstract
ljharb/es-abstract
es-abstract
/
helpers
/
isAbstractClosure.js
10 lines
(6 loc)
•
244 B
JavaScript
View Raw
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'use strict'
;
var
functionName =
require
(
'function.prototype.name'
);
var
anon =
functionName
(
function
(
) {});
module
.
exports
=
function
isAbstractClosure
(
x
) {
return
typeof
x ===
'function'
&& (!x.
prototype
||
functionName
(x) === anon); };