转换成日期时间格式 ISO8601

Question

I am receiving the input date as below.

2022-05-05 18:08:13.311951 +0:00

And I am trying to convert this to below format which follows ISO8601 format.

2022-05-05T18:08:13.311951+00:00

Is there a way in JS we can implement this logic. I know the equivalent sql query which is like below to achieve it but confused on the js to achieve same.

select to_char(CREATE_DT,'YYYY-MM-DD"T"hh24:mi:sstzh:tzm') CREATE_DT from TABLE_NAME;

Answer 1

You can try a regular expression, however it might be a little complex and not that maintainable. An alternative is to parse the string into its parts and reconstruct it, eg

 // Format 2022-05-05 18:08:13.311951 +0:00 as // 2022-05-05T18:08:13.311951+00:00 function reformatTimestamp (ts) { let pad = c => c.padStart(2,'0'); // Match one or more digits OR space followed by + or - let [Y, M, D, H, m, s, ms, oSign, oH, om] = ts.match(/\d+| [-+]/g) || []; return `${Y}-${M}-${D}T${H}:${m}:${s}.${ms}${oSign.trim()}${pad(oH)}:${om}`; } ['2022-05-05 18:08:13.311951 -8:00', '2022-05-05 18:08:13.311951 +5:30', '2022-05-05 18:08:13.311951 -10:00', '2022-05-05 18:08:13.311951 +10:00'].forEach(ts => console.log(ts + '\n' + reformatTimestamp(ts)) );