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34
node_modules/ramda/es/compose.js
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34
node_modules/ramda/es/compose.js
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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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}
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