👀 Viselect: Let Users Visually Select DOM Elements

If you’ve got a variety of elements and you want users to be able to select them in groups, individually, or even in multiple groups, this lets you offer that functionality easily. Can be used in a vanilla fashion or with integrations for P/React or Vue.js.

Simon Reinisch

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);