Lightning Component: Search on enter

Search.cmp

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,force:hasRecordId,forceCommunity:availableForAllPageTypes" access="global">
    <lightning:card >
	
      <span onkeypress="{!c.keyCheck}">
          <lightning:input aura:id="searchbox" label="" name="searchbox" 
          placeholder="Search a thing" value="" />
      </span>
	  
    </lightning:card>
</aura:component

SearchController.js

({ // jshint asi: true, esversion: 6, laxcomma: true
	keyCheck : function(c, e, h){
		if (e.which == 13){
			const val = c.find('searchbox').get('v.value')
			console.log(`Do something with ${val}`)
		}    
		else {
			e.stopPropagation()
		}
	}
})// jshint ignore: line