@miyagi/core/lib/styleguide/helpers.js

miyagi is a component development tool for JavaScript template engines.

export const getCustomProperties = function (obj, property, endsWith) {
	var result = [];

	if (obj instanceof Array) {
		for (var i = 0; i < obj.length; i++) {
			result = [...result, ...getCustomProperties(obj[i], property, endsWith)];
		}
	} else {
		for (const prop in obj) {
			if (prop == "property") {
				if (endsWith) {
					if (obj[prop].endsWith(`-${property}`)) {
						result.push({
							property: obj.property,
							value: obj.value,
						});
					}
				} else {
					if (obj[prop].startsWith(`--${property}-`)) {
						result.push({
							property: obj.property,
							value: obj.value,
						});
					}
				}
			}
			if (obj[prop] instanceof Object || obj[prop] instanceof Array) {
				result = [
					...result,
					...getCustomProperties(obj[prop], property, endsWith),
				];
			}
		}
	}

	return result;
};