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Commit fdab687

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1 parent 0812982 commit fdab687

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10 files changed

+140
-1
lines changed

10 files changed

+140
-1
lines changed

‎000_temp/63fall2018/003-func/func.go‎ renamed to ‎000_temp/63-fall-2018/003-func/func.go‎

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@@ -18,4 +18,4 @@ func secondStatement() {
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func finalStat() {
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fmt.Println("about to exit")
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}
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}
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package main
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import (
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"fmt"
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)
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func main() {
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fname := "James"
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lname := "Bond"
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fmt.Println(fname, lname)
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girlfriend := "Miss Moneypenny"
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fmt.Println(girlfriend)
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}
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/*
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declare, assign, initialize
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DECLARE a VARIABLE stores a VALUE of a certain TYPE
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we ASSIGN a VALUE of a certain TYPE to a VARIABLE
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declare & assign ==> initialize
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*/
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package main
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import (
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"fmt"
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)
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var x int
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var y string
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func main() {
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fmt.Println(x)
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fmt.Println("|", y, "|")
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}
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// zero value
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// if you declare a VAR of a certain TYPE
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// and do not ASSIGN a VALUE to that VAR
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// a ZERO VALUE will be ASSIGNED to that VAR
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package main
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import (
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"fmt"
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)
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var x = 42
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var y = "M"
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func main() {
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fmt.Println(x)
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fmt.Println(y)
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}
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package main
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import (
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"fmt"
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)
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func main() {
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fmt.Println("Begin")
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// pass in an ARGUMENT to the func when you CALL IT
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foo("James Bond")
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x := "Miss Moneypenny"
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// pass in an ARGUMENT to the func when you CALL IT
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foo(x)
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n, _ := fmt.Println("1")
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fmt.Println("number of bytes written", n)
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}
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// foo takes a VALUE of TYPE string
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// we could also say:
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// foo has a parameter which is a VALUE of TYPE string
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// funcs may be defined with PARAMETER(S)
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func foo(name string) {
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fmt.Println("Hello", name)
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}
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package main
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import (
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"fmt"
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)
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// DECLARE a variable to be of a certain TYPE
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// we can only ever store VALUES of that TYPE in that VARIABLE
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// the VARIABLE has an IDENTIFIER
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// STATIC programming language
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// IDIOMATIC - idioms are patterns of speech
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// COMPILER will check to make sure our code is IDIOMATIC
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var x int
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func main() {
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x = 7
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fmt.Println(x)
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}
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package main
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import "fmt"
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func main() {
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fmt.Println("This is the entry point beginning of the programming")
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foo()
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// call bar with ARGUMENTS
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a, b := bar("James Bond", 32)
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fmt.Println(a)
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fmt.Println("In 10 years Bond will be", b, "years old.")
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fmt.Println(`Program "about" to exit`)
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}
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func foo() {
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fmt.Println("Foo is here")
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}
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// define bar with PARAMETERS
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// EXPRESSIONS evaluate to some VALUE, eg, y + 10
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// STATEMENT is a line of code to be executed
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func bar(x string, y int) (string, int) {
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return fmt.Sprint(x, " is here and he is ", y, " years old"), y + 10
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}
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// we will pass ARGUMENTS in to a function that has been defined with PARAMETERS
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// func receiver identifier(parameters) return(s) {code}
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package main
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import "fmt"
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func main() {
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x := 40
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y := 2
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z := x * y
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fmt.Println(z)
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}

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