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http://www.freecodecamp.com/v3rse 's solution for Bonfire: Falsy Bouncer
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// Bonfire: Falsy Bouncer | |
// Author: @v3rse | |
// Challenge: http://www.freecodecamp.com/challenges/bonfire-falsy-bouncer?solution=function%20bouncer(arr)%20%7B%0A%20%20%2F%2F%20Don%27t%20show%20a%20false%20ID%20to%20this%20bouncer.%0A%20%20return%20arr.filter(function(val)%7B%0A%20%20%20%20return%20%20Boolean(val)%3B%0A%20%20%7D)%3B%0A%7D%0A%0Abouncer(%5B7%2C%20%22ate%22%2C%20%22%22%2C%20false%2C%209%5D)%3B%0A | |
// Learn to Code at Free Code Camp (www.freecodecamp.com) | |
function bouncer(arr) { | |
// Don't show a false ID to this bouncer. | |
return arr.filter(function(val){ | |
return Boolean(val); | |
}); | |
} | |
bouncer([7, "ate", "", false, 9]); |
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Confusing sometimes which function return values, which ones alter then and which ones do both.