javascript - Mousedown not working on Iphone? -


i try make mousedown function work on ios cant seem fix issuse. know problem code below greatful!

 bindinteractions: function(){         // bind interactions used during live play         this.playfield.on('mousedown','touchstart', _.throttle(_.bind(function(event){             this.firegun();             var weaponspread = this.player.getweapon().getspread();             if(weaponspread <= 0) {               console.error("zero spread weapons can no damage. recommended minimum size: 25");             }             var playfieldoffset = $(event.delegatetarget).offset();             var location = {                 top: event.pagey - playfieldoffset.top,                 left: event.pagex - playfieldoffset.left             };             $.each(this.liveducks, function(i,duck){                duck.shotsfired(location, weaponspread);             });          },this), this.player.getweapon().getreloadtime()));         this.showlevelinfo();     },     unbindinteractions: function(){         // unbind interactions should not available during transitions , other non live play states         this.playfield.off('mousedown','touchstart');         $.each(this.liveducks, function(i, duck) {             duck.unbindevents();         });

according jquery documentation .on()

.on( events [, selector ] [, data ], handler )

events

type: string 1 or more space-separated event types , optional namespaces, such "click" or "keydown.myplugin".

it says one or more space-separated event types.

so maybe mousedownand touchstart should in same string parameter :

this.playfield.on('mousedown touchstart', _.throttle(_.bind(function(event){  }

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