const regex = /^(\b([0-3]{1}?[0-9]{1})(\/|-)([0-1]{1}?[0-9]{1})(\/|-)([1-2]{1}[0-9]{3})( |-| - )([1-9]{1}[0-9]{1}|[0-2]{1}[0-9]{1}):([0-5]{1}?[0-9]{1}):([0-5]{1}?[0-9]{1})\b)|(\b([0-3]{1}?[0-9]{1})(\/|-)([0-1]{1}?[0-9]{1})(\/|-)([1-2]{1}[0-9]{3})\b)$/gmi;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(\\b([0-3]{1}?[0-9]{1})(\\\/|-)([0-1]{1}?[0-9]{1})(\\\/|-)([1-2]{1}[0-9]{3})( |-| - )([1-9]{1}[0-9]{1}|[0-2]{1}[0-9]{1}):([0-5]{1}?[0-9]{1}):([0-5]{1}?[0-9]{1})\\b)|(\\b([0-3]{1}?[0-9]{1})(\\\/|-)([0-1]{1}?[0-9]{1})(\\\/|-)([1-2]{1}[0-9]{3})\\b)$', 'gmi')
const str = `13/08/2015 15:07:01
13/08/2015-15:07:01
13/08/2015 - 15:07:01
01/01/2015 - 11:00:00
01/01/2015 - 22:10:55
01/01/2015`;
// 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