validator: function()

in google-cloud-server/src/main/resources/buildServerResources/knockout.validation-2.0.3.js [982:994]

• 10 lines of code
• 6 McCabe index (conditional complexity)

	validator: function (val, options) {
		var c = kv.utils.getValue(options.collection),
			external = kv.utils.getValue(options.externalValue),
			counter = 0;

		if (!val || !c) { return true; }

		koUtils.arrayFilter(c, function (item) {
			if (val === (options.valueAccessor ? options.valueAccessor(item) : item)) { counter++; }
		});
		// if value is external even 1 same value in collection means the value is not unique
		return counter < (!!external ? 1 : 2);
	},