Zupfen JavaScript
function pluck(arr, key) {
return arr.map(obj => obj[key]);
}
Suman Majhi
function pluck(arr, key) {
return arr.map(obj => obj[key]);
}// Write a function that returns an array of only the objects with truthy values
// for the passed in key.
//
// pluckTruthy({a: 1, b: '', c: false}, 'a') => [1]
// pluckTruthy({a: 1, b: '', c: false}, 'b') => []
// pluckTruthy({a: 1, b: '', c: false}, 'c') => []
// pluckTruthy({a: 1, b: '', c: false}, 'd') => []
//
function pluckTruthy(obj, key) {
var result = [];
for (var i = 0; i < obj.length; i++) {
if (obj[i][key]) {
result.push(obj[i][key]);
}
}
return result;
}
// console.log(pluckTruthy({a: 1, b: '', c: false}, 'a'));