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- 'use strict'
-
- const get = require('lodash.get')
-
- const data = require('./simple')
-
-
-
- const filterById = (id) => (data) =>
- !!(data && ('object' === typeof data) && data.id === id)
-
- const filterByKeys = (pattern) => (data) => {
- if (!data || 'object' !== typeof data) return false
- for (let key in pattern) {
- if (get(data, key) !== pattern[key]) return false
- }
- return true
- }
-
-
-
- const stations = (pattern) => {
- let matcher
- if (pattern === 'all' || pattern === undefined) matcher = () => true
- else if ('object' === typeof pattern) matcher = filterByKeys(pattern)
- else matcher = filterById(pattern) // todo: make this more efficient
-
- return data.filter(matcher)
- }
-
- module.exports = Object.assign(stations, {filterById, filterByKeys})
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