JavaScript is a critical component for modern Web applications. It's one of the most popular programming languages and is widely used for tasks like validating input in Web apps or creating animated visual effects, as well as for more complicated application logic.

Google, however, believes that JavaScript, an implementation of ECMAScript standard, is fundamentally flawed and can't be fixed at a speed that matches its development ambitions. The company plans next month to announce a new programming language called Dart that it hopes will eventually replace JavaScript.

Google周一（10/10）宣布推出全新的網頁程式語言DART（飛鏢）的先期預覽版，外界解讀認為，Google將以此開放源碼專案取代JavaScript，不過Google強調Dart鎖定的是分散的行動平台。

根據Google的說明，Dart是一種類別式程式語言（class-based programming language），在設計上有三大目標。一是建立一個兼具結構性（Structured）與彈性（flexible）的網路程式語言。其次是讓程式設計師感到熟悉而自然，學習更加容易。三是要讓網路應用能夠在所有現今的瀏覽器及環境下都能夠有高效能的執行效率，不管是在小型的手持式裝置或是伺服器端上。