javascript - Angular function to check if time is within 45mins of given time and if now is after time -


i'm new 'angularjs' , having hard time creating function check if give 'time' less 45 minutes now , if time in past now after time

function checktime(time) {     var date = new date();     var date1 = new date((date.getmonth() + 1) + "/" + date.getdate() + "/" + date.getfullyear() + " " + time);     var minutes = (date1.gettime() - date.gettime()) / (60 * 1000);     return (minutes > 40 || (minutes < 0 && minutes > -1395)); }

this have far, checks time not greater 45 mins now

any guidance appreciated!

solution momentjs.

angular directive moment.

moment js docs.

first install moment through bower:

bower install angular-moment moment --save

include moment in app: 

<script src="components/moment/moment.js"></script> <script src="components/angular-moment/angular-moment.js"></script>

( if using grunt, run grunt serve , automatically add these scripts, since using --save during bower install )

add module angularmoment app. 

var myapp = angular.module('myapp', ['angularmoment']);

now can use momentjs in controllers. suggest moment, because it's easier operate on dates pure javascript.

your problem find 1 point in time before or after in specified time ( 45 mins ). seems me imagine have circle radius. radius 45 mins , in middle of circle. inside circle fine , outside wrong. enter image description here

you want know if in past, on left side of circle.

so lets assume middle algebraic 0.

n circle radius. ( 45 mins )

if t argument ( given time ), check if inside: 

f(t) = n - t if f(t) between 0 , t belongs on right side.  if f(t) between t , 2t belonds , in on left side ( past ).

with preparation, time implement in momentjs: 

function checktime(time){     var = moment(new date());     var later = now.add(45*60,'seconds');     var time = moment(new date(time));     var ft = later.millisecond() - time.millisecond();     if ( ( ft > 0 ) && ( ft < 2700000 ) )//45*60*1000         return false;//future     if ( ( ft > 2700000 ) && ( ft < 2*2700000 ) )         return false;//past     return true; }

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