Golang Summaries

原文链接

• 各个类型的value部分，进行copy所需要的字节数

• 关于各个类型部分内置function部分的

• ways to concatenate strings

  • + 少于6个strings推荐使用

  • strings.Join方法

  • fmt.Sprintf以及fmt.Sprint

  • Buffer方法？

• ways to block current goroutine ‎forever

  • select{}

  • <-chan struct{}(nil)

  • send value to a channel which no ones will receive values from

  make(chan struct{}) <- struct{}{}

  • receive from a channel which no values will be sent to

  <-make(chan struct{})

• Expressions which can return an optional additional bool return value

  包括三类

  • map

  • channel

  • type assertion

• Types which don’t support comparisons

  • map

  • slice

  • function

  • struct types containing incomparable fields

  • array types with incomparable elements

• Values that can taken addresses

  • variables

  • fields of addressable structs

  • elements of addressable arrays

  • elements of any slices (whether the slices are addressable or not)

  • pointer dereference operations

• Values that can’t taken addresses

  • bytes in strings

  • map elements(?)

  • dynamic values of interface values (exposed by type assertions)

  • constant values

  • literal values

  • package level functions (这个试验一下)

  • methods (used as function values)

  • intermediate values

• Types which zero values can be represented with nil

  这里列举一些nil所需要的字节数

  Type (T)	Size Of T(nil)
  pointer	1 word
  slice	3 words
  map	1 word
  channel	1 word
  function	1 word
  interface	2 words