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es.array.map.js
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es.array.map.js
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'use strict'
;
var
$
=
require
(
'../internals/export'
);
var
$map
=
require
(
'../internals/array-iteration'
).
map
;
var
arrayMethodHasSpeciesSupport
=
require
(
'../internals/array-method-has-species-support'
);
var
HAS_SPECIES_SUPPORT
=
arrayMethodHasSpeciesSupport
(
'map'
);
// `Array.prototype.map` method
// https://tc39.es/ecma262/#sec-array.prototype.map
// with adding support of @@species
$
({
target
:
'Array'
,
proto
:
true
,
forced
:
!
HAS_SPECIES_SUPPORT
},
{
map
:
function
map
(
callbackfn
/* , thisArg */
)
{
return
$map
(
this
,
callbackfn
,
arguments
.
length
>
1
?
arguments
[
1
]
:
undefined
);
}
});
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