Golang/Basics - Revision history

Pio2pio: /* Structs (objects) */

2021-09-21T20:22:49Z

Structs (objects)

← Older revision		Revision as of 22:22, 21 September 2021
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	{102 98}		{102 98}
	</source>		</source>

			== Marshal and unmarshal JSON ==
			Go's terminology calls marshal the process of generating a JSON string from a data structure, and unmarshal the act of parsing JSON to a data structure.

	= [https://golangbot.com/go-packages/ Go modules and custom packages] =		= [https://golangbot.com/go-packages/ Go modules and custom packages] =

2021-09-19T20:12:07Z

Go modules and custom packages

← Older revision		Revision as of 22:12, 19 September 2021
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	</source>		</source>

			= <code>defer</code> =
			Instruction <code>defer</code> defers the execution until all other instructions in the function complete. Multiple <code>defer</code> instructions will be executed in LIFO (last-in-first-out) order. Refer to the example below.
			<source lang=go>
			package main

			import "fmt"

			func main() {
			defer printString("print 1")
			printString("hey defer in action")
			defer printString("print 2")
			defer printString("print 3")
			}

			func printString(str string) {
			fmt.Println(str)
			}
			</source>


			Execute
			<source lang=bash>
			go run defer.go
			hey defer in action
			print 3
			print 2
			print 1
			</source>

	[[Category:Golang]]		[[Category:Golang]]

2021-08-31T18:14:38Z

Structs (objects)

← Older revision		Revision as of 20:14, 31 August 2021
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	= Structs (objects) =		= Structs (objects) =
	'''Struct''' is commonly called a structure or a user define data. Structs can have [https://gist.github.com/prologic/5f6afe9c1b98016ca278f4d507e65510#methods methods].		'''Struct''' is commonly called a structure or a user define data. Structs can have [https://gist.github.com/prologic/5f6afe9c1b98016ca278f4d507e65510#methods methods]. There are different methods: methods on a struct and "pointer receiver" methods.
	<syntaxhighlightjs lang=go>		<syntaxhighlightjs lang=go>
	package main		package main

2021-08-31T18:12:55Z

Structs (objects)

← Older revision		Revision as of 20:12, 31 August 2021
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	= Structs (objects) =		= Structs (objects) =
	'''Struct''' is commonly called a structure or a user define data. Structs can have methods.		'''Struct''' is commonly called a structure or a user define data. Structs can have [https://gist.github.com/prologic/5f6afe9c1b98016ca278f4d507e65510#methods methods].
	<syntaxhighlightjs lang=go>		<syntaxhighlightjs lang=go>
	package main		package main

2021-08-31T18:11:37Z

Structs (objects)

← Older revision		Revision as of 20:11, 31 August 2021
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	= Structs (objects) =		= Structs (objects) =
	'''Struct''' is commonly called a structure or a user define data.		'''Struct''' is commonly called a structure or a user define data. Structs can have methods.
	<syntaxhighlightjs lang=go>		<syntaxhighlightjs lang=go>
	package main		package main

2021-08-31T18:10:39Z

Struct

← Older revision		Revision as of 20:10, 31 August 2021
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	</source>		</source>

	= ~~Struct~~ =		= Structs (objects) =
	'''Struct''' is commonly called a structure or a user define data.		'''Struct''' is commonly called a structure or a user define data.
	<syntaxhighlightjs lang=go>		<syntaxhighlightjs lang=go>

2021-08-31T11:02:41Z

Struct

← Older revision		Revision as of 13:02, 31 August 2021
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	fmt.Println(student2)		fmt.Println(student2)
	fmt.Println(student2.name) // this prints empty line as		fmt.Println(student2.name) // this prints empty line as
	//the 'name' property of the variable 'student2' has not been assigned any value		// the 'name' property of the variable 'student2' has not been assigned any value
	}		}
	</syntaxhighlightjs>		</syntaxhighlightjs>

2021-08-31T11:02:33Z

Struct

2021-08-31T11:01:58Z

Struct

← Older revision		Revision as of 13:01, 31 August 2021
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	= Struct =		= Struct =
			'''Struct''' is commonly called a structure or a user define data.
	<syntaxhighlightjs lang=go>		<syntaxhighlightjs lang=go>
	package main		package main
	import "fmt"		import "fmt"
	type Student struct { // ~~structure or user define data. Object.~~		type Student struct { // object
	rollno int // ~~properties~~		rollno int // property
	name string		name string // property
	marks int		marks int // property
	}		}

2021-08-31T11:00:13Z

Struct

← Older revision		Revision as of 13:00, 31 August 2021
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	= Struct =		= Struct =
	<~~source~~ lang=go>		<syntaxhighlightjs lang=go>
	package main		package main
	import "fmt"		import "fmt"
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	//the 'name' property of the variable 'student2' has not been assigned any value		//the 'name' property of the variable 'student2' has not been assigned any value
	}		}
	</~~source~~>		</syntaxhighlightjs>
	<source lang=bash>		<source lang=bash>
	go run struct.go		go run struct.go