/arrayFilter.js Secret
Created
January 8, 2020 05:56
Interview question of the week from Cassidoo's newsletter (implement array.filter() by hand)
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function arrayFilter( arrayToFilter, comparison ) { | |
const filteredArray = []; | |
arrayToFilter.map( item => { | |
if ( comparison( item ) === true ) { | |
filteredArray.push( item ); | |
} | |
} ); | |
return filteredArray; | |
} | |
const a1 = [ 'apples', 'oranges', 'bananas' ]; | |
const a2 = arrayFilter( a1, item => item !== 'oranges' ); | |
console.log( a1 ); | |
console.log( a2 ); |
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