Comment valider les entrées utilisateur date javascript sur mm: jj: Format yy

Question

J'ai essayé de valider la date avec le code suivant: -

function d(id){ 
var n= document.getElementById(id); 
var re=/^(?:(0[1-9]|1[012])[\- \/.](0[1-9]|[12][0-9]|3[01])[\- \/.](19|20)[0-9]{2})$/; 
    if (re.test(n.value)) 
    { 
    n.style.backgroundColor="#52F40C"; 

    } 
    else 
    { 
    window.alert("Invalid date"); 
       n.style.backgroundColor="#F40C0C"; 
       n.focus(); 
       n.value=""; 

    } 
} 

Mais il ne fonctionne pas. Quel est le problème avec ce code?

Answer 1

essayer cette

function isValidDate(subject){ 
    if (subject.match(/^(?:(0[1-9]|1[012])[\- \/.](0[1-9]|[12][0-9]|3[01])[\- \/.](19|20)[0-9]{2})$/)){ 
    return true; 
    }else{ 
    return false; 
    } 
} 

Answer 2

Essayez d'utiliser cette fonction

function isDate(txtDate, separator) { 
var aoDate,   // needed for creating array and object 
    ms,    // date in milliseconds 
    month, day, year; // (integer) month, day and year 
// if separator is not defined then set '/' 
if (separator === undefined) { 
    separator = '/'; 
} 
// split input date to month, day and year 
aoDate = txtDate.split(separator); 
// array length should be exactly 3 (no more no less) 
if (aoDate.length !== 3) { 
    return false; 
} 
// define month, day and year from array (expected format is m/d/yyyy) 
// subtraction will cast variables to integer implicitly 
month = aoDate[0] - 1; // because months in JS start from 0 
day = aoDate[1] - 0; 
year = aoDate[2] - 0; 
// test year range 
if (year < 1000 || year > 3000) { 
    return false; 
} 
// convert input date to milliseconds 
ms = (new Date(year, month, day)).getTime(); 
// initialize Date() object from milliseconds (reuse aoDate variable) 
aoDate = new Date(); 
aoDate.setTime(ms); 
// compare input date and parts from Date() object 
// if difference exists then input date is not valid 
if (aoDate.getFullYear() !== year || 
    aoDate.getMonth() !== month || 
    aoDate.getDate() !== day) { 
    return false; 
} 
// date is OK, return true 
return true; 

}