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http://www.freecodecamp.com/duggiemitchell 's solution for Bonfire: Seek and Destroy
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// Bonfire: Seek and Destroy | |
// Author: @duggiemitchell | |
// Challenge: http://www.freecodecamp.com/challenges/bonfire-seek-and-destroy | |
// Learn to Code at Free Code Camp (www.freecodecamp.com) | |
function destroyer(arr) { | |
var argCombo = arr.slice.call(arguments); | |
console.log(argCombo.splice(0,1)); | |
return arr.filter(function(chr) { | |
return argCombo.indexOf(chr) === -1; | |
} | |
); | |
} | |
destroyer([1, 2, 3, 1, 2, 3], 2, 3); |
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Fist, we must turn the arguments into an array using
arr.slice.call(arguments);
and assign to the variableargCombo
The splice method modifies the
argCombo
array and returns the deleted elements as a new array ``console.log(argCombo.splice(0,1)); //output: [1,1]Now, using the
filter()
function onarr
to remove elements we dont want and return ones we wish to keep. In this case,chr
is assigned to elements in array will returnchr
that are=== -1
sincefilter()
returns -1 (orfalse
) forchr
that are not present in the array