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Replies for: Also a simple "Destroyer" implementation: function destroyer(arr, ...params) { return arr.filter(el=>!params.includes(el)); }

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Ram Newton • 
function destroyer(arr, ...params){
    params_set = new Set(params);
    return arr.filter(item => !(params_set.has(item)))
};
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.includes() does a linear search. Creating a set out of the parameters and using the .has() method will improve performance