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Post #2636
4.52K
- ❤ 2
- 🤔 2
Channel Public Channel
JA JavaScript
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Showing posts older than #2637 · Back to latest
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Post #2635
4.41K
CHALLENGE
const obj = {
name: 'Sarah',
regularMethod: function() {
return () => {
console.log(this.name);
};
},
arrowMethod: () => {
return () => {
console.log(this.name);
};
}
};
const regular = obj.regularMethod();
const arrow = obj.arrowMethod();
regular();
arrow();- ❤ 6
Post #2634
4.68K
🎹 Happy Programmers Day!
- ❤ 42
- 🔥 12
- 👍 7
Post #2633
4.81K
- 🤔 9
- ❤ 3
- 👍 3
Post #2632
4.71K
CHALLENGE
const original = {
name: 'Emma',
skills: ['JavaScript', 'Python'],
config: { theme: 'dark', notifications: true }
};
const copy1 = { ...original };
const copy2 = JSON.parse(JSON.stringify(original));
const copy3 = Object.assign({}, original);
copy1.name = 'Sarah';
copy1.skills.push('React');
copy1.config.theme = 'light';
console.log(original.name);
console.log(original.skills.length);
console.log(original.config.theme);- ❤ 6
- 🤣 6
- 🔥 2
Post #2631
4.63K
😆
- 🤣 45
- 👍 6
Post #2630
4.66K
- 👍 7
- 🔥 6
- ❤ 1
Post #2629
4.38K
CHALLENGE
function createCounter() {
let count = 0;
return {
increment: () => ++count,
decrement: () => --count,
getValue: () => count
};
}
const counter1 = createCounter();
const counter2 = createCounter();
counter1.increment();
counter1.increment();
counter2.increment();
console.log(counter1.getValue() + counter2.getValue()); Post #2628
4.65K
- ❤ 6
- 👍 2
Post #2627
4.12K
CHALLENGE
const createLogger = (prefix) => (message) => `${prefix}: ${message}`;
const createCounter = () => {
let count = 0;
return () => ++count;
};
const withLogging = (fn) => (...args) => {
const result = fn(...args);
console.log(`Called with: ${args}, Result: ${result}`);
return result;
};
const counter = createCounter();
const loggedCounter = withLogging(counter);
const logger = createLogger('INFO');
console.log(loggedCounter());
console.log(logger(loggedCounter()));- 👍 7
- ❤ 4
Post #2626
4.04K
😭 A Major Supply Chain Attack Hits the npm Ecosystem
In July, Socket warned us about a phishing campaign targeting npm package publishers. Sadly, a prolific package author (among others, like DuckDB, who explain how the attack worked on them) fell victim to the scam, resulting in some popular packages becoming compromised (like Chalk, debug, and others).
Gooding, Brown, et al. (Socket)
In July, Socket warned us about a phishing campaign targeting npm package publishers. Sadly, a prolific package author (among others, like DuckDB, who explain how the attack worked on them) fell victim to the scam, resulting in some popular packages becoming compromised (like Chalk, debug, and others).
Gooding, Brown, et al. (Socket)
- 🤔 4
- 🔥 3
- ❤ 1
Post #2625
4.05K
- ❤ 6
- 👍 2
Post #2624
4.2K
CHALLENGE
const original = {
name: 'Sarah',
scores: [85, 92, 78],
details: {
age: 25,
city: 'Portland'
}
};
const copy1 = { ...original };
const copy2 = JSON.parse(JSON.stringify(original));
copy1.name = 'Emma';
copy1.scores.push(95);
copy1.details.age = 30;
console.log(original.name, original.scores.length, original.details.age);- ❤ 7
- 🔥 4
- 👍 2
Post #2623
4.11K
🎨 Eyecons is a VS Code icon theme that automatically adapts the color of icons to fit your editor's main theme – well, from this list anyway.
- 👍 9
- ❤ 1
- 🔥 1
Post #2622
4.45K
- ❤ 5
- 🔥 3
Post #2621
4.19K
CHALLENGE
class CustomError extends Error {
constructor(message) {
super(message);
this.name = 'CustomError';
}
}
try {
try {
throw new CustomError('inner error');
} catch (e) {
console.log(e.name);
throw new Error('outer error');
}
} catch (e) {
console.log(e.message);
console.log(e instanceof CustomError);
}- ❤ 3
Post #2620
4.17K
👀 Peaks.js 4.0: UI Component for Interacting with Audio Waveforms
A project originally spawned from the BBC’s R&D department, Peaks renders audio waveforms to a canvas element and allows scrolling, zooming, and the sort of things you might otherwise see in an audio editor. LGPL licensed.
Chris Needham et al.
A project originally spawned from the BBC’s R&D department, Peaks renders audio waveforms to a canvas element and allows scrolling, zooming, and the sort of things you might otherwise see in an audio editor. LGPL licensed.
Chris Needham et al.
- ❤ 3
- 👍 3
- 🔥 3
Post #2619
4.05K
- ❤ 1
Post #2618
4.13K
CHALLENGE
console.log('1');
setTimeout(() => console.log('2'), 0);
Promise.resolve().then(() => console.log('3'));
queueMicrotask(() => console.log('4'));
setTimeout(() => console.log('5'), 0);
Promise.resolve().then(() => {
console.log('6');
return Promise.resolve();
}).then(() => console.log('7'));
console.log('8');- ❤ 6
- 👍 4
- 🔥 4
Post #2617
4.02K
😱 Google Chrome Turns 17: A History
A fantastic walkthrough of Chrome’s origins and its evolution over the years. Addy looks at key milestones (multi-process architecture for example), security, its steps into the world of AI, and more.
Addy Osmani
A fantastic walkthrough of Chrome’s origins and its evolution over the years. Addy looks at key milestones (multi-process architecture for example), security, its steps into the world of AI, and more.
Addy Osmani
- ❤ 7
- 👍 3
- 🤩 3
- 🔥 2