Function stringifyObjectKeyIfNeeded

src/utils/identifierHelpers.ts:30–38

(key: string)

const NUMBER_REGEXP = /^(?:0|[1-9]\d*)$/;

export function stringifyObjectKeyIfNeeded(key: string) {
	if (VALID_IDENTIFIER_REGEXP.test(key)) {
		return key === '__proto__' ? '["__proto__"]' : key;
	}
	if (NUMBER_REGEXP.test(key) && +key <= Number.MAX_SAFE_INTEGER) {
		return key;
	}
	return JSON.stringify(key);
}

export function stringifyIdentifierIfNeeded(key: string) {
	if (VALID_IDENTIFIER_REGEXP.test(key)) {