const regex = /^(?:(?:31([-\/.]?)(?:0[13578]|1[02]))\1|(?:(?:29|30)([-\/.]?)(?:0[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)\d{2})$|^(?:29([-\/.]?)02\3(?:(?:(?:1[6-9]|[2-9]\d)(?:0[48]|[2468][048]|[13579][26]))))$|^(?:0[1-9]|1\d|2[0-8])([-\/.]?)(?:(?:0[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)\d{2})$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?:(?:31([-\\\/.]?)(?:0[13578]|1[02]))\\1|(?:(?:29|30)([-\\\/.]?)(?:0[1,3-9]|1[0-2])\\2))(?:(?:1[6-9]|[2-9]\\d)\\d{2})$|^(?:29([-\\\/.]?)02\\3(?:(?:(?:1[6-9]|[2-9]\\d)(?:0[48]|[2468][048]|[13579][26]))))$|^(?:0[1-9]|1\\d|2[0-8])([-\\\/.]?)(?:(?:0[1-9])|(?:1[0-2]))\\4(?:(?:1[6-9]|[2-9]\\d)\\d{2})$', 'gm')
const str = `02/04/2012
30-04-2017
12122019
12.01.2019
-- datas inválidas
29/02/2017
20-10/2019
31.04.2017
10/10/10
1/1/2019`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions