7Search.ccecmascript vs javascriptecmascript vs javascriptecmascript vs javascript vs typescriptwhat is ecmascript in javascriptrelation between javascript and ecmascriptwhat is ecmascript in jsjavascript is ecmascript true or falsejavascript ecmascript latest versionwhat is an ecmascriptwhat is ecmascript or escommonjs vs ecmascript modulesecmascript 与 javascript 是什么关系ecmascript versions and features