<lightning:datatable aura:id="PYearTable"
            columns="{!v.columns}"
            data="{!v.data}"
            keyField="Id"
            onsave="{!c.saveFunction}"
            draftValues="{!v.draftValues }"
            hideCheckboxColumn="true"
            oncellchange="{!c.handleCellChange}"
            showRowNumberColumn="true" onrowaction="{!c.handleRowAction }" />

var cols = [
    {
        type: "button",
        typeAttributes: {
            label: 'Delete',
            name: 'deleteRecord',
            title: 'Delete',
            disabled: false,
            value: 'Delete',
            iconName: 'utility:delete',
            iconPosition: 'left'
        }
    },
    {
        label: 'Production Year',
        fieldName: 'Name',
        type: 'text'
    },
    {
        label: 'Fully Ramped Production',
        fieldName: 'isFRP__c',
        type: 'boolean',
        editable:true
    },
    {
         label: 'Quantity',
         fieldName: 'Quantity__c',
         type: 'number',
         editable:true
    }
];