[Translation] ecmascript 6 (continuous update)

• Ecmascript 6 and spread Operator
  Expand operator. Converts an array to a continuous parameter.
• Ecmascript 6 and rest parameter
  Variable parameters. Process variable objective function parameters.
• Ecmascript 6 and object literal property value shorthand
  Abbreviated object literal attribute value. The property value has the same name as the property identifier.
• Ecmascript 6 and method Definitions
  Method definition. Define an attribute method without using the keyword function.
• Ecmascript 6 and destructuring assignment
  Deconstruct value assignment. Extract the part of the object using the mode.
• Ecmascript 6 and default argument
  Default parameter. A function declaration can specify a default value for each parameter.
• Ecmascript 6 and arrow Function
  Arrow function. Function expression.
• Ecmascript 6 and array Comprehension
  Array derivation. An easy way to create an array based on another array.