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

A collection of stylistic/formatting Stylelint rules

/**
 * Check if a string is a single line (i.e. does not contain
 * any newline characters).
 *
 * @param {string} input
 * @return {boolean}
 */
export function isSingleLineString (input) {
	return !(/[\n\r]/).test(input)
}