Lodash initial method
语法：
Gets all but the last element of array.
参数
array (Array) − The array to query.
输出：
(Array) − Returns the slice of array.
实例：
var _ = require('lodash');
var list = [1, 2, 3, 4, 5, 6];
var result = _.initial(list)
console.log(result);
Save the above program in
tester.js. Run the following command to execute this program.
命令：
输出：
