CHALLENGE ❓

const obj = {};
Object.defineProperty(obj, "prop", {
  value: 42,
  writable: false
});
obj.prop = 100;
console.log(obj.prop);

✌️ JavaScript weekly #714

CHALLENGE ❓

const arr = [1, 2];
arr.length = 0;
console.log(arr[0]);

🤔 Cheaters are breaking the technical interview... how?

Fireship

CHALLENGE ❓

const obj = { a: 1 };
Object.seal(obj);
obj.b = 2;
console.log(obj.b);

➕ Math.js 14.0: An Extensive Math Library for Node and Browsers

Work with complex numbers, fractions, units, matrices, symbolic computation, etc. A long standing library now, but continuing to get frequent updates. GitHub repo.

Jos de Jong

CHALLENGE ❓

console.log(0.1 + 0.2 === 0.3);

💻 Deno v. Oracle: Cancelling the JavaScript Trademark

Did you know Oracle formally owns the ‘JavaScript’ trademark? There have been a few efforts to change this over the years (most recently via this open letter) but Oracle isn’t listening. The Deno team has now formally filed a petition to cancel the trademark which Deno claims is fradulent because Oracle used screenshots of Node.js, a project Oracle doesn’t even own, as evidence of the trademark’s use.

Deno

CHALLENGE ❓

const obj = {
  a: 1,
  b: function() {
    return this.a;
  }
};
const b = obj.b;
console.log(b());

✌️🤟 Math.js 14.0: An Extensive Math Library for Node and Browsers

Work with complex numbers, fractions, units, matrices, symbolic computation, etc. A long standing library now, but continuing to get frequent updates. GitHub repo.

Jos de Jong

CHALLENGE ❓

function* gen() {
  yield 1;
  yield 2;
  return 3;
}
const g = gen();
console.log([...g]);

👻 Sketchy Stanford study says 9.5% of programmers are "ghosts"...


Fireship

CHALLENGE ❓

const nums = [1, 2, 3];
const res = nums.reduce((acc, val) => acc + val, "");
console.log(typeof res);