Lodash compact method
语法：
Creates an array with all falsey values removed. The values false, null, 0, "", undefined, and NaN are falsy.
参数
array (Array) − The array to compact.
输出：
(Array) − Returns the new array of filtered values.
实例：
var _ = require('lodash');
var numbers = [1, false, 3, 0];
var listOfNumbers = '';
listOfNumbers = _.compact(numbers);
console.log(listOfNumbers);
Save the above program in
tester.js. Run the following command to execute this program.
命令：
输出：
