JavaScript equivalent of python string slicing

See Array.prototype.slice and String.prototype.slice.

'1234567890'.slice(1, -1);            // String
'1234567890'.split('').slice(1, -1);  // Array

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However, Python slices have steps:

'1234567890'[1:-1:2]

But *.prototype.slice has no step parameter. To remedy this, I wrote slice.js. To install:

npm install --save slice.js

Example usage:

import slice from 'slice.js';

// for array
const arr = slice([1, '2', 3, '4', 5, '6', 7, '8', 9, '0']);

arr['2:5'];        // [3, '4', 5]
arr[':-2'];        // [1, '2', 3, '4', 5, '6', 7, '8']
arr['-2:'];        // [9, '0']
arr['1:5:2'];      // ['2', '4']
arr['5:1:-2'];     // ['6', '4']

// for string
const str = slice('1234567890');
str['2:5'];        // '345'
str[':-2'];        // '12345678'
str['-2:'];        // '90'
str['1:5:2'];      // '24'
str['5:1:-2'];     // '64'

Simply use s2.slice(1) without the comma.