Keywords

• • • Boolean values - bool, true, false
    • Boolean truth table
• $?
  • • Exit early with exit code
• %
  • • Integer-based operations
• %d
  • • Converting values to other types - float32, int, string
• %ERRORLEVEL%
  • • Exit early with exit code
• %f
  • • Converting values to other types - float32, int, string
• %s
  • • Hello Bar - Printf
• %T
  • • Show inferred variable type - Printf %T
• %v
  • • Hello Bar - Printf %v
    • Sprintf
• &
  • • Array assignment (pointer)
    • Pointer to integer
    • bitwise operators
• &&
  • • Boolean truth table
• &^
  • • bitwise operators
• *
  • • Pointer to integer
• ++
  • • Integer-based operations
• +=
  • • Integer-based operations
• --
  • • Integer-based operations
• ...
  • • Merge two slices
• //
  • • Comments
• /=
  • • Integer-based operations
• /dev/null
  • • Turn logging on/off
• :=
  • • Hello Foo - Println
    • Variable declaration (var)
• <<
  • • bitwise operators
• >>
  • • bitwise operators
• [...]
  • • Arrays automatic length
• []
  • • Arrays
• ^
  • • bitwise operators
• Add
  • • Global waitgroup for goroutines
    • Wait for goroutines
• append
  • • Slice append
    • Append to file
• Args
  • • Args - (argv) command line arguments
• Atoi
  • • Converting string to integer - strconv, Atoi
    • Scan STDIN convert to number
• bool
  • • Basic Types
• break
  • • break out from loop
• bufio
  • • Read file line-by-line with Scanner
• build
  • • Hello World
• byte
  • • Basic Types
    • Bytes
    • Byte is uint8
• caller
  • • Caller filename
• cap
  • • Slice of an array
    • Slice
• case
  • • Solution: calculator STDIN switch
    • switch
• catch
  • • Recover (and re-panic)
• complex
  • • Basic Types
• const
  • • Constants
• Contains
  • • String Contains, HasPrefix, HasSuffix
• continue
  • • continue
• copy
  • • Slice Pointer and copy slice
• Create
  • • Write to file
• cwd
  • • Get Current Working Directory (cwd)
• defer
  • • Defer
    • Panic after defer
• Discard
  • • Turn logging on/off
• Done
  • • Global waitgroup for goroutines
    • Wait for goroutines
• editor
  • • Editor/IDE for Golang
• Eecutable
  • • os.Executable
• else
  • • if else statement
• EOF
  • • golang create io.reader from string
• err
  • • Converting string to integer - strconv, Atoi
    • Converting string to float - strconv, ParseFloat
• exec
  • • Find executable (which where)
• Exit
  • • Scan STDIN convert to number
    • Exit early with exit code
• false
  • • Default values of variables
    • Boolean values - bool, true, false
• Fields
  • • Split on whitespaces
• float
  • • Basic Types
• float32()
  • • Converting values to other types - float32, int, string
• Float64
  • • Random
• Float64sAreSorted
  • • Are values sorted?
• fmt
  • • Hello World
• for
  • • 3-part for loop
    • For loop on array - iterate over array
    • For loop in slice - iterate over slice
• FormValue
  • • HTTP Echo GET
• Fprintln
  • • Print to STDERR or STDOUT
• Front
  • • queue
• func
  • • Hello World
    • Hello World function
    • Hello You function (passing parameter)
• GET
  • • HTTP Echo GET
• get
  • • Install packages
• Getcwd
  • • Get Current Working Directory (cwd)
• go
  • • goroutine example
    • goroutine not finished yet
• HasPrefix
  • • String Contains, HasPrefix, HasSuffix
• HasSuffix
  • • String Contains, HasPrefix, HasSuffix
• http
  • • http get request
    • HTTP Hello World
• IDE
  • • Editor/IDE for Golang
• if
  • • if else statement
• imag
  • • Basic Types
• import
  • • Hello World
• int
  • • Basic Types
• Int
  • • Random
• int()
  • • Converting values to other types - float32, int, string
• int32
  • • Runes
• int8
  • • int8
• interface
  • • type switch
• Intn
  • • Random
• IntsAreSorted
  • • Are values sorted?
• iota
  • • iota
    • iota skipping 0
    • const powers of 2
• ioutil
  • • List Directory
• IsNotExist
  • • os.stat information about a file or directory (file exists)
• Itoa
  • • Converting string to integer with error handling - strconv, Itoa
    • Converting integer to string - strconv, Itoa
• join
  • • Join
• Join
  • • Join parts of a directory or filepath
• keys
  • • Keys of a map
• len
  • • Length of string
    • Solution: which string is longer?
    • Arrays
    • Arrays
    • Slice of an array
    • Slice
• ListenAndServe
  • • HTTP Hello World
• LookPath
  • • Find executable (which where)
• main
  • • Hello World
• make
  • • Pre-allocate capacity for slice with make
• map
  • • Map (hash, dictionary)
    • Empty Map
    • Empty Map with make
• math
  • • Solution: circle STDIN with math
• Method
  • • HTTP Echo POST
• NewReader
  • • Read file line by line with Reader
    • golang create io.reader from string
• NewScanner
  • • Read file line-by-line with Scanner
• nil
  • • Converting string to integer - strconv, Atoi
    • Converting string to integer with error handling - strconv, Itoa
    • Converting string to float - strconv, ParseFloat
• Now
  • • Time example
    • sleep and elapsed time
• NullWriter
  • • Turn logging on/off
• Open
  • • Read file line-by-line with Scanner
    • Read file line by line with Reader
• os
  • • os.stat information about a file or directory (file exists)
• os.Args
  • • Args - (argv) command line arguments
• os.Exit
  • • Exit early with exit code
• os.Open
  • • Read file line-by-line with Scanner
• Output
  • • Turn logging on/off
• package
  • • Hello World
• panic
  • • We Panic
• ParseFloat
  • • Converting string to float - strconv, ParseFloat
    • Scan STDIN convert to number
• pop
  • • Remove last element of slice (pop)
• POST
  • • HTTP Echo POST
• PostFormValue
  • • HTTP Echo POST
• pow
  • • Integer-based operations
• Prefix
  • • Logging: Set Prefix
• Printf
  • • Hello Bar - Printf
    • Hello Bar - Printf %v
    • Show inferred variable type - Printf %T
• Println
  • • Hello Foo - Println
• println
  • • Println
• PushBack
  • • queue
• pwd
  • • Get Current Working Directory (cwd)
• raise
  • • We Panic
• rand
  • • Random
• range
  • • iterate over characters in a string
    • For loop on array - iterate over array
    • For loop in slice - iterate over slice
• Read
  • • golang create io.reader from string
• ReadDir
  • • List Directory
• ReadFile
  • • Read file as one string (slurp)
• readline
  • • Read file line by line with Reader
• ReadString
  • • Read file line by line with Reader
• real
  • • Basic Types
• recover
  • • Recover (and re-panic)
• reflect
  • • Show type of variable - reflect.TypeOf
    • Tags and introspection (reflect)
• Remove
  • • queue
• RemoveAll
  • • Create Temporary Directory
• Repeat
  • • Solution: Hide substring
• Request
  • • HTTP Hello World
• ResponseWriter
  • • HTTP Hello World
• return
  • • Function with return value
• rm -rf
  • • Create Temporary Directory
• run
  • • Hello World
• rune
  • • Runes
• runtime
  • • Caller filename
    • Open Web browser
• Scan
  • • Scan input strings from STDIN
    • Scan STDIN convert to number
    • Read file line-by-line with Scanner
• Seed
  • • Random with seed
• select
  • • Select channel
• SetPrefix
  • • Logging: Set Prefix
• shift
  • • Remove first element of slice (shift, pop(0))
• Sleep
  • • sleep and elapsed time
• slice
  • • Slice
• slurp
  • • Read file as one string (slurp)
• sort
  • • Sort slice
• sort.Ints
  • • Sort slice
• sort.Strings
  • • Sort slice
• Split
  • • Split
    • Split on whitespaces
• Sprintf
  • • Converting values to other types - float32, int, string
• sprintf
  • • Sprintf
• sprintln
  • • Sprintln
• Stat
  • • os.stat information about a file or directory (file exists)
• Stderr
  • • Turn logging on/off
    • Print to STDERR or STDOUT
• STDERR
  • • Print to STDERR or STDOUT
• STDIN
  • • Scan input strings from STDIN
• STDOUT
  • • Print to STDERR or STDOUT
• strconv
  • • Converting string to integer - strconv, Atoi
    • Converting string to integer with error handling - strconv, Itoa
    • Converting string to float - strconv, ParseFloat
    • Converting integer to string - strconv, Itoa
• string
  • • Basic Types
• string()
  • • Converting values to other types - float32, int, string
• StringsAreSorted
  • • Are values sorted?
• struct
  • • Struct and type
• Sub
  • • sleep and elapsed time
• swicth
  • • Solution: calculator STDIN switch
• switch
  • • switch
• sync
  • • Global waitgroup for goroutines
    • Wait for goroutines
• TagAttr
  • • Parse HTML extract tags and attributes
• TagName
  • • Parse HTML extract tags and attributes
• TempDir
  • • Create Temporary Directory
• test
  • • Simple example with testing
    • Test with failure
• testing
  • • Simple example with testing
    • Test with failure
• time
  • • Time example
• time.Now().Unix
  • • Random with seed
• trim
  • • Trim line - remove trailing newline from string
• TrimSuffix
  • • Trim line - remove trailing newline from string
• true
  • • Boolean values - bool, true, false
• try
  • • Recover (and re-panic)
• type
  • • Struct and type
    • type switch
• TypeOf
  • • Show type of variable - reflect.TypeOf
    • Tags and introspection (reflect)
• uint
  • • Basic Types
• uint16
  • • uint16
• uint32
  • • uint32
• uint8
  • • uint8
• Unix
  • • Time example
• UnixNano
  • • Nanoseconds
• url
  • • URL parsing
• var
  • • Variable declaration (var)
• version
  • • Show Installed Version of Golang
• Wait
  • • Global waitgroup for goroutines
    • Wait for goroutines
• WaitGroup
  • • Global waitgroup for goroutines
    • Wait for goroutines
• where
  • • Find executable (which where)
• which
  • • Find executable (which where)
• while
  • • while-like for loop
• write
  • • Write to file
• WriteString
  • • Write to file
    • Print to STDERR or STDOUT
• |
  • • bitwise operators
• ||
  • • Boolean truth table