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Tim van der Lippe
16aca394c5
Major update breaking changes: - ESLint 7.0.0 (https://eslint.org/docs/user-guide/migrating-to-7.0.0) now includes .eslint.rc.js in its list, which is fine for us. Other changes are not applicable for us. - eslint-plugin-mocha (https://github.com/lo1tuma/eslint-plugin-mocha/blob/master/CHANGELOG.md#700-may-13-2020) drops support for ESLint <7, but this CL updates to 7+. Other changes are not applicable for us. DISABLE_THIRD_PARTY_CHECK=Updating ESLint R=petermarshall@chromium.org Change-Id: I7760e084ef87f73a92f9ea4e075fb4c065047f5a Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2534873 Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
import _curry3 from "./internal/_curry3.js";
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/**
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* Scan is similar to [`reduce`](#reduce), but returns a list of successively
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* reduced values from the left
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*
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* @func
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* @memberOf R
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* @since v0.10.0
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* @category List
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* @sig ((a, b) -> a) -> a -> [b] -> [a]
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* @param {Function} fn The iterator function. Receives two values, the accumulator and the
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* current element from the array
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* @param {*} acc The accumulator value.
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* @param {Array} list The list to iterate over.
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* @return {Array} A list of all intermediately reduced values.
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* @see R.reduce, R.mapAccum
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* @example
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*
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* const numbers = [1, 2, 3, 4];
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* const factorials = R.scan(R.multiply, 1, numbers); //=> [1, 1, 2, 6, 24]
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* @symb R.scan(f, a, [b, c]) = [a, f(a, b), f(f(a, b), c)]
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*/
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var scan =
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/*#__PURE__*/
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_curry3(function scan(fn, acc, list) {
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var idx = 0;
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var len = list.length;
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var result = [acc];
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while (idx < len) {
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acc = fn(acc, list[idx]);
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result[idx + 1] = acc;
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idx += 1;
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}
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return result;
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});
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export default scan; |