@tonycodes.bsky.social
87 Followers · 71 Following
coding and sustainable cities (he/him) editor: https://urbanism.guide
![A screenshot of code demonstrating the tweet. This is the code:
const shouldIOptimize = () => {
let bigArray = [];
for (let i = 0; i++; i < 100_000_000) {
bigArray.push(i);
}
};
console.time("shouldIOptimize");
shouldIOptimize();
console.timeEnd("shouldIOptimize"); // -> 'shouldIOptimize: 0.165ms'](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:utrkakxuwx3g6gcivellxdzo/bafkreihgpcm4ryghwdm2khcvpm5dxla5aenw556vbtwq6ocmqw2yc64ove)
![The javascript code:
const deepObject = {
a: {
b: {
c: {
d: {
e: {
f: "deeply nested data doesn't print in console.log",
},
},
},
},
},
};
console.log(deepObject); // { a: { b: { c: [Object] } } }
console.dir(deepObject, { depth: null }); // { a: { b: { c: { d: { e: { f: 'deeply nested data doesn\'t print in console.log' } } } } } }](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:utrkakxuwx3g6gcivellxdzo/bafkreiactwnu4qz3thufhjbtzcwpyffxvuvug4d4urejqu5x272rjhbaay)
![The following code:
const request = fetch('https://randomuser.me/api/')
// Example object from an earlier fetch
const exampleObject = {
street: { number: 6372, name: 'Pasaje Querétaro' },
district: 1, // Missing from future requests
city: 'Alcozauca de Guerrero',
state: 'Ciudad de Mexico',
country: 'Mexico',
postcode: 44175,
coordinates: { latitude: '25.4178', longitude: '-65.4889' },
timezone: {
offset: '+5:30',
description: 'Bombay, Calcutta, Madras, New Delhi'
}
}
type UserLocation = Required<typeof exampleObject>
request.then(async (response) => {
const json = await response.json()
const user: UserLocation = json.results[0].location
const district = user.district
console.log(district) // -> undefined
})](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:utrkakxuwx3g6gcivellxdzo/bafkreiat25mdrpew2vyqxt4y443xdialtp6lurgdijzhqjx55f4i74bshy)
