Javascript Array: get 'range' of items

Question

Is there an equivalent for ruby\'s array[n..m] in Javascript ?

For example:

>> a = [\'a\',\'b\',\'c\',\'d\',\'e\',\'f\',\'g\']
>> a[0..2]         


        

Answer 1

The second argument in slice is optional, too:

var fruits = ['apple','banana','peach','plum','pear'];
var slice1 = fruits.slice(1, 3);  //banana, peach
var slice2 = fruits.slice(3);  //plum, pear

You can also pass a negative number, which selects from the end of the array:

var slice3 = fruits.slice(-3);  //peach, plum, pear

Here's the W3 Schools reference link.