Function sortOrder

2.0.3/Sizzle-annotation.js:45–51

(a, b)

		compilerCache = createCache(),
		hasDuplicate = false,
		sortOrder = function(a, b) {
			if (a === b) {
				hasDuplicate = true;
				return 0;
			}
			return 0;
		},

		// General-purpose constants
		strundefined = typeof undefined,