StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>All of the examples provided fail to work for times from 12:00 am to 12:59 am. They also throw an error if the regex does not match a time. The following handles this:</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>function parseTime(timeString) { if (timeString == '') return null; var time = timeString.match(/(\d+)(:(\d\d))?\s*(p?)/i); if (time == null) return null; var hours = parseInt(time[1],10); if (hours == 12 && !time[4]) { hours = 0; } else { hours += (hours < 12 && time[4])? 12 : 0; } var d = new Date(); d.setHours(hours); d.setMinutes(parseInt(time[3],10) || 0); d.setSeconds(0, 0); return d; } var tests = [ '1:00 pm','1:00 p.m.','1:00 p','1:00pm','1:00p.m.','1:00p','1 pm', '1 p.m.','1 p','1pm','1p.m.', '1p', '13:00','13', '1a', '12', '12a', '12p', '12am', '12pm', '2400am', '2400pm', '2400', '1000', '100', '123', '2459', '2359', '2359am', '1100', '123p', '1234', '1', '9', '99', '999', '9999', '99999', '0000', '0011', '-1', 'mioaw' ]; for ( var i = 0; i < tests.length; i++ ) { console.log( tests[i].padStart( 9, ' ' ) + " = " + parseTime(tests[i]) ); }</code></pre> </div> </div> </p> <p>This will work for strings which contain a time anywhere inside them. So "abcde12:00pmdef" would be parsed and return 12 pm. If the desired outcome is that it only returns a time when the string only contains a time in them the following regular expression can be used provided you replace "time[4]" with "time[6]".</p> <pre><code>/^(\d+)(:(\d\d))?\s*((a|(p))m?)?$/i </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload