Tengo una matriz que se construye utilizando valores de entrada del usuario y puede tener cualquier longitud:
var products = [ {key1: string1, key2: 1, key3: 30, key4: 1}, {key1: string2, key2: 2, key3: 35, key4: 2} ]Y tengo algunos filtros.
var filters = { key2: 1, key3: {min: 20, max: 40}, key4: 1, }Actualmente estoy usando la siguiente función para filtrar productos usando mis filtros
function multiFilter(array, filters) { const filterKeys = Object.keys(filters); return array.filter((item) => { // flipped around, and item[key] forced to a string return filterKeys.every(key => !!~String(item[key]).indexOf(filters[key])); }); } var filtered = multiFilter(products, filters); console.log(filtered);Todo funciona como se esperaba cuando key3 en los filtros tiene un número exacto, pero tengo problemas al intentar incorporar un rango. ¿Cómo modificaría la función para permitir un rango en key3 (filtros)?
Tal vez este enfoque sería útil
const products = [ {key1: 'string0',key2: 0,key3: 10,key4: 1}, {key1: 'string1',key2: 1,key3: 15,key4: 1}, {key1: 'string2',key2: 2,key3: 20,key4: 1}, {key1: 'string3',key2: 3,key3: 25,key4: 2}, {key1: 'string4',key2: 4,key3: 30,key4: 2}, {key1: 'string5',key2: 5,key3: 35,key4: 2}, {key1: 'string6',key2: 6,key3: 40,key4: 4}, {key1: 'string7',key2: 7,key3: 45,key4: 4}, {key1: 'string8',key2: 8,key3: 50,key4: 4}, {key1: 'string9',key2: 9,key3: 55,key4: 4}]; const filters = { key2: {max: 7}, key3: {min: 20, max: 60}, key4: 4, }; const filterProdacts = (products, filters) => { // First, we create an object where the property values (min, max, eq) // are predicate functions. const fns = { eq: (key, value) => (obj) => obj[key] === value, min: (key, value) => (obj) => obj[key] >= value, max: (key, value) => (obj) => obj[key] <= value, }; // Generates a predicate based on the conditions makePredicat = (filterKey, filterValue) => { // For consistency мake the numeric values as an object like { eq: 5 } const filterObj = (typeof filterValue === 'object') ? filterValue : { eq: filterValue }; // Pick a function from fns and initialize it with the condition parameters return Object.entries(filterObj) .map(([condKey, condValue]) => fns[condKey](filterKey, condValue)); }; // Fill in the array with predicate functions for each condition. // In this example there will be 4 functions, one for each condition // key2 - max: 7; key3 - min: 20; key3 - max: 60; key4 - eq: 4; const predicats = Object.entries(filters).flatMap(([key, value]) => makePredicat(key, value)); // Initializing reduce by source array // then filtering it with all predicate functions return predicats.reduce((acc, fn) => acc.filter(fn), products); }; console.log(filterProdacts(products, filters)); .as-console-wrapper{min-height: 100%!important; top: 0}