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es.promise.any.js
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es.promise.any.js
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'use strict'
;
var
$
=
require
(
'../internals/export'
);
var
call
=
require
(
'../internals/function-call'
);
var
aCallable
=
require
(
'../internals/a-callable'
);
var
getBuiltIn
=
require
(
'../internals/get-built-in'
);
var
newPromiseCapabilityModule
=
require
(
'../internals/new-promise-capability'
);
var
perform
=
require
(
'../internals/perform'
);
var
iterate
=
require
(
'../internals/iterate'
);
var
PROMISE_ANY_ERROR
=
'No one promise resolved'
;
// `Promise.any` method
// https://tc39.es/ecma262/#sec-promise.any
$
({
target
:
'Promise'
,
stat
:
true
},
{
any
:
function
any
(
iterable
)
{
var
C
=
this
;
var
AggregateError
=
getBuiltIn
(
'AggregateError'
);
var
capability
=
newPromiseCapabilityModule
.
f
(
C
);
var
resolve
=
capability
.
resolve
;
var
reject
=
capability
.
reject
;
var
result
=
perform
(
function
()
{
var
promiseResolve
=
aCallable
(
C
.
resolve
);
var
errors
=
[];
var
counter
=
0
;
var
remaining
=
1
;
var
alreadyResolved
=
false
;
iterate
(
iterable
,
function
(
promise
)
{
var
index
=
counter
++
;
var
alreadyRejected
=
false
;
remaining
++
;
call
(
promiseResolve
,
C
,
promise
).
then
(
function
(
value
)
{
if
(
alreadyRejected
||
alreadyResolved
)
return
;
alreadyResolved
=
true
;
resolve
(
value
);
},
function
(
error
)
{
if
(
alreadyRejected
||
alreadyResolved
)
return
;
alreadyRejected
=
true
;
errors
[
index
]
=
error
;
--
remaining
||
reject
(
new
AggregateError
(
errors
,
PROMISE_ANY_ERROR
));
});
});
--
remaining
||
reject
(
new
AggregateError
(
errors
,
PROMISE_ANY_ERROR
));
});
if
(
result
.
error
)
reject
(
result
.
value
);
return
capability
.
promise
;
}
});
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