Using KM variables in Yosemite Javascript for Applications (JXA)

Questions & Suggestions
6

Updated the gist on reading and writing KM variables to avoid dependence on (try ... catch) error handling when checking whether a variable exists.

// Get a reference to a Keyboard Maestro variable (existing or new)
function kmVar(k) {
	var	kme = Application("Keyboard Maestro Engine"),
		vs = kme.variables,
		vks = vs.where({name:k});
			
	return vks.length ? vks[0] :
		vs.push(kme.Variable({'name': k})) && vs[k];
}