const REGEX_OF_VARIABLE = /\{\{\s*([a-zA-Z0-9_$-.]+?)\s*\}\}/g;
const isVariable = (str)=>{
    if ('string' != typeof str) return false;
    const matches = str.match(REGEX_OF_VARIABLE);
    if (!matches) return false;
    return true;
};
export { REGEX_OF_VARIABLE, isVariable };
