Skip to main content
Module

x/ramda/test/slice.js

:ram: Practical functional Javascript
Latest
File
var R = require('../source');var eq = require('./shared/eq');

describe('slice', function() { it('retrieves the proper sublist of a list', function() { var list = [8, 6, 7, 5, 3, 0, 9]; eq(R.slice(2, 5, list), [7, 5, 3]); }); it('handles array-like object', function() { var args = (function() { return arguments; }(1, 2, 3, 4, 5)); eq(R.slice(1, 4, args), [2, 3, 4]); }); it('can operate on strings', function() { eq(R.slice(0, 0, 'abc'), ''); eq(R.slice(0, 1, 'abc'), 'a'); eq(R.slice(0, 2, 'abc'), 'ab'); eq(R.slice(0, 3, 'abc'), 'abc'); eq(R.slice(0, 4, 'abc'), 'abc'); eq(R.slice(1, 0, 'abc'), ''); eq(R.slice(1, 1, 'abc'), ''); eq(R.slice(1, 2, 'abc'), 'b'); eq(R.slice(1, 3, 'abc'), 'bc'); eq(R.slice(1, 4, 'abc'), 'bc'); eq(R.slice(0, -4, 'abc'), ''); eq(R.slice(0, -3, 'abc'), ''); eq(R.slice(0, -2, 'abc'), 'a'); eq(R.slice(0, -1, 'abc'), 'ab'); eq(R.slice(0, -0, 'abc'), ''); eq(R.slice(-2, -4, 'abc'), ''); eq(R.slice(-2, -3, 'abc'), ''); eq(R.slice(-2, -2, 'abc'), ''); eq(R.slice(-2, -1, 'abc'), 'b'); eq(R.slice(-2, -0, 'abc'), ''); });
});