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const Stream = require('stream'); | |
const readableStream = new Stream.Readable(); | |
readableStream.push('Hola'); | |
readableStream.push(' '); | |
readableStream.push('Mundo'); | |
readableStream.push(null); | |
async function getContentReadStream(readable) { | |
for await (const chunk of readable) { |
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function isPalindrome(str) { | |
const replaceStr = str.replace(/[^A-Za-z0-9]/g, '').toLowerCase(); | |
const reverseString = replaceStr.split('').reverse().join(''); | |
return replaceStr === reverseString; | |
} | |
console.log(isPalindrome("EYES")); // true | |
console.log(isPalindrome("not is palindrome")); // false |
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const abcValues = [ | |
"A", | |
"B", | |
"C", | |
"D", | |
"E", | |
"F", | |
"G", | |
"H", | |
"I", |
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from threading import Thread | |
def counter(): | |
for i in range(1, 11): | |
print(i) | |
t = Thread(target=counter) | |
t.start() |
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db.createCollection('valorizacion'); | |
db.getCollection('valorizacion').insertOne({ | |
motorPrecio: "", | |
fechaCreacion: "", | |
datosVehiculo: { | |
descripcionMarca: "", | |
descripcionModelo: "", | |
descripcionVersion: "", | |
descripcionColor: "", | |
ano: "", |
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const romanSymbols = { | |
'1': 'I', | |
'2': 'II', | |
'3': 'III', | |
'4': 'IV', | |
'5': 'V', | |
'6': 'VI', | |
'7': 'VII', | |
'8': 'VIII', | |
'9': 'IX', |
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const { exec } = require('child_process'); | |
url = "https://www.youtube.com/"; | |
cmdCommand = `start chrome /new-tab ${url}`; | |
exec(cmdCommand); |
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// ^\([0-9]{3}\)[0-9]{3}-[0-9]{4}$ | |
function isEEUUPhoneNumber(number) { | |
const reg = /[-+]?(?:\d{1,2}\s)?\(*(?:\d{3})(?:-|\)|\)\s|\s)*\d{3}(?:-|\s)*\d{4}/; | |
return reg.test(number); | |
} | |
console.log(isEEUUPhoneNumber("1(555)555-5555")); // true | |
console.log(isEEUUPhoneNumber("(555)555-5555")); // false | |
console.log(isEEUUPhoneNumber("2(757)6227382")); //false |
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class Node { | |
constructor(value, next) { | |
this.value = value; | |
this.next = next; | |
} | |
} | |
class LinkedList { | |
constructor() { | |
this.head = null; |
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function rotateLeft(d, arr) { | |
while (d > 0) { | |
const leftElement = arr.shift(); | |
arr.push(leftElement); | |
d--; | |
} | |
return arr; | |
} | |
console.log(rotateLeft(2, [1, 2, 3, 4, 5])); // [3, 4, 5, 1, 2] |