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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>
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
import pipe from "./pipe.js";
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import reverse from "./reverse.js";
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/**
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* Performs right-to-left function composition. The last argument may have
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* any arity; the remaining arguments must be unary.
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*
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* **Note:** The result of compose is not automatically curried.
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*
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* @func
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* @memberOf R
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* @since v0.1.0
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* @category Function
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* @sig ((y -> z), (x -> y), ..., (o -> p), ((a, b, ..., n) -> o)) -> ((a, b, ..., n) -> z)
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* @param {...Function} ...functions The functions to compose
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* @return {Function}
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* @see R.pipe
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* @example
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*
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* const classyGreeting = (firstName, lastName) => "The name's " + lastName + ", " + firstName + " " + lastName
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* const yellGreeting = R.compose(R.toUpper, classyGreeting);
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* yellGreeting('James', 'Bond'); //=> "THE NAME'S BOND, JAMES BOND"
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*
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* R.compose(Math.abs, R.add(1), R.multiply(2))(-4) //=> 7
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*
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* @symb R.compose(f, g, h)(a, b) = f(g(h(a, b)))
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*/
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export default function compose() {
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if (arguments.length === 0) {
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throw new Error('compose requires at least one argument');
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}
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return pipe.apply(this, reverse(arguments));
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} |