Regular Expressions
Declarative Programming
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This regular expression is a little lack luster. I think it could be improved to account for hyphens and apostraphes that are supposed to be apart of a word. The objective here is to not accidentally capture punctuation mistakes.
wordCount=s=>s.trim().match(/[A-Za-z0-9]+/mg).length;wordCount=s=>s.trim().split(' ').length- wordCount=s=>s.trim().match(/[A-Za-z0-9]+/mg).length;
// TODO: Replace examples and use TDD development by writing your own tests // These are some CW specific test methods available: // Test.expect(boolean, [optional] message) // Test.assertEquals(actual, expected, [optional] message) // Test.assertSimilar(actual, expected, [optional] message) // Test.assertNotEquals(actual, expected, [optional] message) // NodeJS assert is also automatically required for you. // assert(true) // assert.strictEqual({a: 1}, {a: 1}) // assert.deepEqual({a: [{b: 1}]}, {a: [{b: 1}]}) // You can also use Chai (http://chaijs.com/) by requiring it yourself // var expect = require("chai").expect; // var assert = require("chai").assert; // require("chai").should(); Test.assertEquals(wordCount(" v"), 1); Test.assertEquals(wordCount("Word"), 1); Test.assertEquals(wordCount("Wo r d"), 3); Test.assertEquals(wordCount("Bob the t-rex"), 4); Test.assertEquals(wordCount("Bob the t-rex . Has Typo period."), 7);- // TODO: Replace examples and use TDD development by writing your own tests
- // These are some CW specific test methods available:
- // Test.expect(boolean, [optional] message)
- // Test.assertEquals(actual, expected, [optional] message)
- // Test.assertSimilar(actual, expected, [optional] message)
- // Test.assertNotEquals(actual, expected, [optional] message)
- // NodeJS assert is also automatically required for you.
- // assert(true)
- // assert.strictEqual({a: 1}, {a: 1})
- // assert.deepEqual({a: [{b: 1}]}, {a: [{b: 1}]})
- // You can also use Chai (http://chaijs.com/) by requiring it yourself
- // var expect = require("chai").expect;
- // var assert = require("chai").assert;
- // require("chai").should();
- Test.assertEquals(wordCount(" v"), 1);
- Test.assertEquals(wordCount("Word"), 1);
- Test.assertEquals(wordCount("Wo r d"), 3);
Test.assertEquals(wordCount("Bob the t-rex"), 3);- Test.assertEquals(wordCount("Bob the t-rex"), 4);
- Test.assertEquals(wordCount("Bob the t-rex . Has Typo period."), 7);