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indongyoo/reduce+generator.js

Last active December 6, 2018 07:44
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reduce+generator
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reduce+generator.js
function reduce(f, acc, iter) {
if (arguments.length == 2) {
iter = acc[Symbol.iterator]();
acc = iter.next().value;
}
for (const a of iter) acc = f(acc, a);
return acc;
}
reduce((a, b) => a + b, function*() {
yield 1;
yield 2;
yield 3;
} ());
// 6
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