javascript - How to restrict user to only enter 12 hour time, with AM and PM -


what want been available allow user enter 12 hour time am/pm in a field.

extra: way can validate 2 fields "from - to", example: if user enter 1pm in field from, field call allow 1pm , forward.

any appertained. thanks

you need code parse string , find problems. logic this

  • does contain or pm (case insesensitive)
  • does have : , if pull in minutes, if not asume it's hours.
  • are there numbers before pm/am? if not it's invalid.
  • are of numbers greater 12 or smaller 1?

some usefull functions be. 

"string split".split(" "); // split array spaces

javascript equivalent php explode()

"find pm".indexof('pm'); // return turns how many characters                               //away pm left.

https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/string/indexof

as slice()

 "slice after pm".slice(6); //this slice beginning 6th character.

https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/string/indexof


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