Function getProperties

packages/core/ui/core/bindable/index.ts:22–47

(property: string)

const propertiesCache = {};

function getProperties(property: string): Array<string> {
	if (!property) {
		return emptyArray;
	}

	let result: Array<string> = propertiesCache[property];
	if (result) {
		return result;
	}

	// first replace all '$parents[..]' with a safe string
	// second removes all ] since they are not important for property access and not needed
	// then split properties either on '.' or '['
	const parentsMatches = property.match(parentsRegex);
	result = property.replace(parentsRegex, 'parentsMatch').replace(/\]/g, '').split(/\.|\[/);

	let parentsMatchesCounter = 0;
	for (let i = 0, resultLength = result.length; i < resultLength; i++) {
		if (result[i] === 'parentsMatch') {
			result[i] = parentsMatches[parentsMatchesCounter++];
		}
	}
	propertiesCache[property] = result;

	return result;
}

/**
 * Normalizes "ontap" to "tap", and "ondoubletap" to "ondoubletap".