I have strings that includes the dates. I wanted to get the full date only.
If there's no year, just add the current year of 4 digits.
Sample
Nov 29 2019
abc 0 May 30 2020
ddd Apr 3 2021 efg
0 Jan 3 hellodewdde deded
https://regex101.com/r/pLUQNe/1
Regex
(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d{1,2}?)
You may use the following regex pattern:
(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d{1,2}(?: \d{4})?
var dates = ["Nov 29 2019", "abc 0 May 30 2020", "ddd Apr 3 2021 efg", "0 Jan 3 hellodewdde deded", "Green eggs and ham"];
var months = "(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)";
var regex = new RegExp(months + " \\d{1,2}(?: \\d{4})?");
var matches = [];
for (var i=0; i < dates.length; ++i) {
var date = dates[i].match(regex);
if (date != null) {
if (date[0].match(/ \d{4}$/)) {
matches.push(date[0]);
}
else {
matches.push(date[0] + " " + new Date().getFullYear());
}
}
}
console.log(matches);The logic here is that we detect if the matching date has a ending 4 digit year. If not, then we append the current year to the month/day match.