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Showing posts older than #2052 · Back to latest

Older Posts 20 shown
Post #2051 6.08K
CHALLENGE

'use strict';

function strictModeExample() {
  undeclaredVariable = 10;
  try {
    console.log(undeclaredVariable);
  } catch (e) {
    console.log('Error:', e.message);
  }
}

strictModeExample();
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Post #2050 6.47K
👍 A Protracker Module Player in Pure JavaScript

I’m a sucker for 90s tracker music, JavaScript experiments, and cool Web experiences, and this has all three. If you’re not familiar with tracker music, it’s a way to write music on a grid which triggers the playing of samples. This code manages to parse and play a Protracker file in pure JavaScript. (Note: The image above is of the original Protracker app, this experiment is more minimal and about the code.)

srtuss
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Post #2049 6.15K
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  • ❤ 2
Post #2048 6.25K
CHALLENGE

let a = 5;
let b = a++ + ++a;
console.log(b);
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Post #2046 6.49K
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Post #2045 6.24K
CHALLENGE

const a = '5';
const b = 5;
const c = 10;

const result1 = a == b;
const result2 = a === b;
const result3 = b < c;
const result4 = b >= c;

console.log(result1, result2, result3, result4);
  • 👍 9
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Post #2044 6.6K
✌️ Oracle Claims 'JavaScript' Isn't a Generic Term, and More

In this 'motion to dismiss' Oracle has responded to Deno’s attempt to prove Oracle shouldn't hold the JavaScript™ trademark with the argument that “relevant consumers do not perceive JAVASCRIPT as a generic term” (does Oracle only consider people who give it money to be relevant?) among other comedic insights.

Ryan Dahl
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Post #2043 6.09K
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Post #2042 6.13K
CHALLENGE

const person = {
  firstName: 'John',
  lastName: 'Doe',
  age: 30,
  getFullName: function() {
    return this.firstName + ' ' + this.lastName;
  }
};

console.log(person.getFullName());
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Post #2040 6.72K
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Post #2039 6.35K
CHALLENGE

function example() {
  console.log(a);
  var a = 10;
  console.log(a);
}
example();
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  • ❤ 1
Post #2038 7.03K
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Post #2037 6.68K
CHALLENGE

const person = {
  name: 'Alice',
  age: 25,
  city: 'Wonderland'
};

const additionalInfo = {
  age: 30,
  occupation: 'Explorer'
};

const combined = {
  ...person,
  ...additionalInfo
};

console.log(combined.age);
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Post #2036 6.52K
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  • ❤ 3
Post #2035 6.72K
CHALLENGE

const numbers = [1, 2, 3, 4, 5];

const result = numbers
  .filter(n => n % 2 === 0)
  .map(n => n * 2)
  .reduce((acc, n) => acc + n, 0);

console.log(result);
  • ❤ 5
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Post #2033 6.74K
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Post #2032 6.64K
CHALLENGE

const wm = new WeakMap();
const obj1 = {};
const obj2 = {};
wm.set(obj1, 'object 1');
wm.set(obj2, 'object 2');
wm.delete(obj1);
console.log(wm.has(obj1));
  • 👍 9
  • ❤ 1
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