觀看 ECMA-262 文件

因為工作所需，所以看了不少 JavaScript 的程式，今天乾脆將 JavaScript 的標準拿來研究研究。

• ECMAScript source text is represented as a sequence of characters in the Unicode character encoding, version 2.1 or later, using the UTF-16 transformation format.
• Tokens - Keywords
  The following tokens are ECMAScript keywords and may not be used as identifiers in ECMAScript programs.
  

  break    else       new       var
  case     finally    return    void
  catch    for        switch    while
  continue function   this      with
  default  if         throw
  delete   in         try
  do       instanceof typeof

• Tokens - Future Reserved Words

  abstract enum       int       short
  boolean  export     interface static
  byte     extends    long      super
  char     final      native    synchronized
  class    float      package   throws
  const    goto       private   transient
  debugger implements protected volatile
  double   import     public

• Two regular expression literals in a program evaluate to regular expression objects that never compare as === to each other even if the two literals' contents are identical.