44 lines
953 B
JavaScript
44 lines
953 B
JavaScript
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'use strict'
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var testValue = require('test-value')
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/**
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* @module reduce-without
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* @example
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* const without = require('reduce-without')
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*/
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module.exports = without
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/**
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* Returns a new array with the same content as the input minus the specified values.
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*
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* @param {any | any[]} - one, or more [test-value](https://github.com/75lb/test-value) queries
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* @returns {Array}
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* @example
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* > [ 1, 2, 3 ].reduce(without(2))
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* [ 1, 3 ]
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*
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* > [ 1, 2, 3 ].reduce(without([ 2, 3 ]))
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* [ 1 ]
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*
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* > data = [
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* { name: "Dana", age: 30 },
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* { name: "Yana", age: 20 },
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* { name: "Zhana", age: 10 }
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* ]
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* > data.reduce(without({ name: /ana/ }))
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* []
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*
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* @alias module:reduce-without
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*/
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function without (toRemove) {
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return function (prev, curr) {
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if (!Array.isArray(prev)) {
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prev = !testValue(prev, toRemove)
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? [ prev ]
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: []
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}
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if (!testValue(curr, toRemove)) prev.push(curr)
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return prev
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}
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}
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