Function classNames

src/common/className.ts:15–38

(...args)

}

export function classNames(...args) {
    if (isEmpty(args)) return;
    const classList: string[] = [];
    for (const arg of args) {
        if (!arg) continue;
        const argType = typeof arg;
        if (argType === 'string' || argType === 'number') {
            classList.push(`${arg}`);
            continue;
        }
        if (argType === 'object') {
            if (arg.toString !== Object.prototype.toString) {
                classList.push(arg.toString());
                continue;
            }
            for (const key in arg) {
                if (Object.hasOwnProperty.call(arg, key) && arg[key]) {
                    classList.push(key);
                }
            }
        }
    }
    return classList.join(' ');
}
/**
 * Element names may consist of Latin letters, digits, dashes and underscores.
 * CSS class is formed as block name plus two underscores plus element name: .block__elem