Empresas
Empleos
  • Sobre nosotros
  • Soluciones
    • Publicación de vacantes
      Publica tu vacante y recibe candidatos calificados en 48h.
    • Evaluación de candidatos
      500+ pruebas técnicas y psicológicas, más anti-fraude.
    • Headhunting
      Búsqueda ejecutiva a la medida de principio a fin.
    • Nómina + EOR
      Dispersión de nómina y EOR en más de 15 países de LATAM.
  • Precios
  • Empleos

0

111
Vistas
Create a function to convert 'M/D/YYYY' date to 'YYYYMMDD' date in JS

This is a practice interview question related to JS I found online. I have tried to complete it and added code below. My question is would my code be a acceptable answer to the question: Create a function to convert a 'M/D/YYYY' formatted date to a 'YYYYMMDD' formatted date in JS?

function formattedUserDate(userInput) {
    const formatDate = userInput
    const apiDateForm = formatDate.split('/')
    let formatDateMonth = apiDateForm[0]
    let formatDateDay = apiDateForm[1]
    let formatDateYear = apiDateForm[2]
    
    formatDateMonth.length == 1 ? formatDateMonth = '0' + formatDateMonth : null;
    formatDateDay.length == 1 ? formatDateDay = '0' + formatDateDay : null;

    const apiDateFormArray = [formatDateYear, formatDateMonth, formatDateDay];
    return apiDateFormArray.join('');
}

console.log(formattedUserDate('5/1/1987'));

about 4 years ago · Juan Pablo Isaza
3 Respuestas
Responde la pregunta

0

In Javascript have new method padStart and padEnd has below syntax.

"your_string".padStart(targetLength [,padString]):

function formattedUserDate(userInput) {
    const formatDate = userInput
    const apiDateForm = formatDate.split('/')
    let formatDateMonth = apiDateForm[0]
    let formatDateDay = apiDateForm[1]
    let formatDateYear = apiDateForm[2]
    
    formatDateMonth = formatDateMonth.padStart(2, "0")
    formatDateDay = formatDateDay.padStart(2, "0")
    
    const apiDateFormArray = [formatDateYear, formatDateMonth, formatDateDay];
    return console.log(apiDateFormArray.join(''));
}

formattedUserDate('5/1/1987');

about 4 years ago · Juan Pablo Isaza Denunciar

0

I think that may be a correct answer. But your code must be clean and clear like that :)

function formattedUserDate(userInput) {

         const date = userInput.split("/");

         let day   = date[1],
             month = date[0], 
             year  = date[2];
        
         return (year + formatter(month) + formatter(day));
}
        
        
const formatter = text => text < 10 ? ('0' + text) : text;
        

console.log("date formatted : " + formattedUserDate('5/1/1987'))

about 4 years ago · Juan Pablo Isaza Denunciar

0

function formattedUserDate(userInput) {
  const apiDateForm = userInput.split('/')
  let formatDateMonth = `0${apiDateForm[0]}`.slice(-2);
  let formatDateDay = `0${apiDateForm[1]}`.slice(-2);
  let formatDateYear = apiDateForm[2]
  const apiDateFormArray = [formatDateYear, formatDateMonth, formatDateDay];
  return console.log(apiDateFormArray.join(''));
}

formattedUserDate('5/1/1987')
about 4 years ago · Juan Pablo Isaza Denunciar
Responde la pregunta
Encuentra empleos remotos

¡Descubre la nueva forma de encontrar empleo!

Top de empleos
Top categorías de empleo
Empresas
Publicar vacante Precios Comercial
Legal
Términos y condiciones Política de privacidad
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Recomiéndame algunas ofertas
Necesito ayuda