source: node_modules/ramda-adjunct/lib/rangeStep.js

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Last change on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago

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1"use strict";
2
3exports.__esModule = true;
4exports["default"] = void 0;
5var _ramda = require("ramda");
6var _floor = _interopRequireDefault(require("./floor"));
7function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
8/**
9 * Creates an array of numbers (positive and/or negative) progressing from start up to, but not including, end.
10 *
11 * `Note`: JavaScript follows the IEEE-754 standard for resolving floating-point values which can produce unexpected results.
12 *
13 * @func rangeStep
14 * @memberOf RA
15 * @category List
16 * @since {@link https://char0n.github.io/ramda-adjunct/2.30.0|v2.30.0}
17 * @sig Number -> Number -> Number -> [Number]
18 * @param {number} step The value to increment or decrement by
19 * @param {number} from The start of the range
20 * @param {number} to The end of the range
21 * @return {number[]} Returns the range of numbers
22 * @see {@link http://ramdajs.com/docs/#range|R.range}
23 * @example
24 *
25 * RA.rangeStep(1, 0, 4); // => [0, 1 ,2, 3]
26 * RA.rangeStep(-1, 0, -4); // => [0, -1, -2, -3]
27 * RA.rangeStep(1, 1, 5); // => [1, 2, 3, 4]
28 * RA.rangeStep(5, 0, 20); // => [0, 5, 10, 15]
29 * RA.rangeStep(-1, 0, -4); // => [0, -1, -2, -3]
30 * RA.rangeStep(0, 1, 4); // => [1, 1, 1]
31 * RA.rangeStep(1, 0, 0); // => []
32 */
33var rangeStep = (0, _ramda.curryN)(3, function (step, from, to) {
34 var callback = step === 0 ? (0, _ramda.always)(from) : function (n) {
35 return from + step * n;
36 };
37 var rangeEnd = step === 0 ? to - from : (0, _floor["default"])((to - from) / step);
38 return (0, _ramda.map)(callback, (0, _ramda.range)(0, rangeEnd));
39});
40var _default = rangeStep;
41exports["default"] = _default;
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