Today I Learned - Rocky Kev

TIL checking falsy values inside an array

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TAGS: array javascript 

// has falsy values
const theArray = [false, null, 0, 'wizard', undefined, 'barbarian'];

// return true/false if a truthy value exists
const ifAnyIsTrue = theArray.some(Boolean); // true

// return true/false if ALL truthy value exists
const ifAllAreTrue = theArray.every(Boolean); // false

// returns the true values
const giveMeTrueValues = theArray.filter(Boolean);

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