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Rooted by: Ulysses vs. Terrence - Remove every Third Character
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  • Code 
    function removeEveryThird(str) {
  return (str[0] || '') + str
    .slice(1)
    .replace(/(..)./g, '$1')
}
     Test Cases 
    const chai = require("chai");
const assert = chai.assert;

describe("Solution", function() {
  it("This test passes", function() {
    assert.strictEqual(removeEveryThird('hello world'), 'helo ord');
  });
  it("This test fails (fix code - not test)", function() {
    assert.strictEqual(removeEveryThird('how you doing'), 'howyo din');
  });
  it("This test fails (fix code - not test)", function() {
    assert.strictEqual(removeEveryThird('abc'), 'abc');
  });
  it("This test fails (fix code - not test)", function() {
    assert.strictEqual(removeEveryThird('1234 56789 10112314'), '123 578 11131');
  });
  it("This test fails (fix code - not test)", function() {
    assert.strictEqual(removeEveryThird(' 00111222'), ' 001122');
  });
});
    View Run Output
  • Code
    • function removeEveryThird(str) {
    • return str
    • .split('')
    • .filter((x, i) => i === 0 || i % 3)
    • .join('')
    • return (str[0] || '') + str
    • .slice(1)
    • .replace(/(..)./g, '$1')
    • }