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Follow Instructions solution in Clear category for Follow Instructions by ddavidse
function follow(instructions: string): [number, number] {
var I = instructions.split('')
var r = I.filter(x => x === 'r').length
var l = I.filter(x => x === 'l').length
var f = I.filter(x => x === 'f').length
var b = I.filter(x => x === 'b').length
return [r-l, f-b]
}
Jan. 4, 2021