@stylistic/stylelint-plugin/lib/utils/isScssVariable/index.js

A collection of stylistic/formatting Stylelint rules

/**
 * Check whether a property is SCSS variable
 *
 * @param {string} property
 * @returns {boolean}
 */
export function isScssVariable (property) {
	// SCSS var (e.g. $var: x), list (e.g. $list: (x)) or map (e.g. $map: (key:value))
	if (property.startsWith(`$`)) {
		return true
	}

	// SCSS var within a namespace (e.g. namespace.$var: x)
	if (property.includes(`.$`)) {
		return true
	}

	return false
}