var timeString=$('.csstdhighlight').closest('tr').find('td:first-child').text();
//getting timestrinfg like this
timeString="07:15 PM07:30 PM07:45 PM08:00 PM08:15 PM08:30 PM08:45 PM";
I have to convert string to array.
So that I can get Start time and end time from array arra[0] will get Start time, array[array.length-1] will get end time
A regular expression would do the job; for just the start and stop times:
var re = /^(\d{2}:\d{2} [AP]M).*(\d{2}:\d{2} [AP]M)$/,
match = timeString.match(re);
console.log(match[1]); // "07:15 PM"
console.log(match[2]); // "08:45 PM"
Alternatively, match all time patterns:
var re = /\d{2}:\d{2} [AP]M/g;
console.log(timeString.match(re));
// ["07:15 PM", "07:30 PM", "07:45 PM", "08:00 PM", "08:15 PM", "08:30 PM", "08:45 PM"]
Update
Seeing how the regular expression for each time has a constant length and you only want the first and last, you can even do this:
timeString.substr(0, 8); // "07:15 PM"
timeString.substr(-8); // "08:45 PM"
Use the split() method.
var n = timeString.split(" ");
start = n[0];
end = n[n.length - 1];
