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qtsd-fork
Version:
latest (0.0.2)
0.0.2
0.0.1
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qtsd-fork
/
example
/
node_modules
/
es6-symbol
/
is-symbol.js
10 lines
(8 loc)
•
254 B
JavaScript
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'use strict'
;
module
.
exports
=
function
(
x
) {
if
(!x)
return
false
;
if
(
typeof
x ===
'symbol'
)
return
true
;
if
(!x.
constructor
)
return
false
;
if
(x.
constructor
.
name
!==
'Symbol'
)
return
false
;
return
(x[x.
constructor
.
toStringTag
] ===
'Symbol'
); };