Underscore.JS initial方法

_.initial(array, [n])

var _ = require('underscore');

var list = [1, 2, 3, 4, 5, 6]
//Example: get elements of a list excluding last element
result = _.initial(list);
console.log(result)

//Example: get elements of list excluding last 3 elements
result = _.initial(list, 3);
console.log(result)

>node tester.js

[ 1, 2, 3, 4, 5 ]
[ 1, 2, 3 ]