Files
react-native-devtools-frontend/node_modules/core-js-pure/modules/esnext.iterator.reduce.js
T
Tim van der Lippe 1fe7f95b0e Add eslint-plugin-lit-a11y to manage_node_deps
This also adds the MPL-2.0 license as valid license to our allowed
licenses list.

R=jacktfranklin@chromium.org
DISABLE_THIRD_PARTY_CHECK=NPM update

Change-Id: I2a3bee2ffc0b328a0579ab62ab27f938bdc876c8
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2593130
Commit-Queue: Jack Franklin <jacktfranklin@chromium.org>
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
2021-01-05 13:13:19 +00:00

26 lines
853 B
JavaScript

'use strict';
// https://github.com/tc39/proposal-iterator-helpers
var $ = require('../internals/export');
var iterate = require('../internals/iterate');
var aFunction = require('../internals/a-function');
var anObject = require('../internals/an-object');
$({ target: 'Iterator', proto: true, real: true }, {
reduce: function reduce(reducer /* , initialValue */) {
anObject(this);
aFunction(reducer);
var noInitial = arguments.length < 2;
var accumulator = noInitial ? undefined : arguments[1];
iterate(this, function (value) {
if (noInitial) {
noInitial = false;
accumulator = value;
} else {
accumulator = reducer(accumulator, value);
}
}, { IS_ITERATOR: true });
if (noInitial) throw TypeError('Reduce of empty iterator with no initial value');
return accumulator;
}
});