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Dokumentasi Golang (PT Phincon)
  • 🚀Dokumentasi Bootcamp (PT Phincon)
  • Command di Golang
  • Static Type di Golang
  • Variable and Constant
    • Variable daI Constant
    • Deklarasi Variabel
    • Iota (Auto Increment)
    • Blank Identifier (Variable Underscore)
    • Access Modifier (Public or Private)
  • Tipe Data Primitif
    • Integer dan Unsigned Integer
    • Float dan Complex
    • String
    • Boolean
  • Tipe Data Aggregate
    • Array
    • Struct
  • Tipe Data Reference
    • Slice
    • Map
    • Function in Golang
      • Function
      • Function vs Method
      • Function vs Procedure
      • Private vs Public Function
      • Function Init dan Main
      • Function dengan Return Multiple Value
      • Variadic Function
      • Function sebagai Parameter
      • Anonymous Function
      • Input Function dari CLI
      • Exercise (Function)
  • Default Value setiap Tipe Data
  • Type Declaration di Golang
    • Type Declaration
    • Type Declaration Built-In di Golang
  • Kebab Case, Camel Case, Snake Case & Pascal Case di Golang
  • Konversi Tipe Data
  • If-Else dan Switch
    • If Else
    • Switch
    • Exercise
  • Looping
    • Looping For
    • Looping for range
    • Infinite Looping
    • Penerapan Looping pada Sorting
  • Operator di Golang
    • Arithmetic Operator
    • Assignment Operator
    • Relational Operator
    • Logic Operator
  • Interface
  • Interface Kosong atau Any
  • Nil
  • Pointer
    • Pass By Value dan Pass By Reference
    • Pointer (Pass By Reference)
    • Operator Address (& dan *)
    • Default Value Pointer
    • Tricky Case
    • Pointer pada Parameter di Function
    • Pointer pada Method
  • Package
    • Fmt
    • Rand
    • Os
    • Strings
      • To Lower
      • Contains
      • Split
      • Trim
      • Atoi
      • Itoa
      • EqualFold
    • Random Generator
    • Time
      • Get Current Time By Location
      • Time Sleep
      • Time Since
      • Timer & After
      • AfterFunc
      • Ticker & Tick
  • Go dan JSON
    • JSON vs XML
    • Unmarshal vs Marshal
    • Marshal (Go Object -> JSON)
    • Unmarshal (JSON -> Go Object)
    • Streaming Decoder & Encoder
    • Tag
    • JSON Go Return Byte
  • Go dan CSV
    • Insert Data ke File CSV
    • Insert 1.000.000 Data ke File CSV
  • Goroutine
    • Concurrency vs Parrarel
    • Go Routine Sederhana
    • Go Routine vs Synchronous
    • Wait Group
    • Defer
    • Channel
    • Buffered Channel
    • Select Channel
    • Deadlock - All goroutines are asleep
    • Race Condition
    • Mutex (Mutual Exclusion)
    • RW Mutex vs Mutex
    • Once
    • Pool
    • Atomic
    • Go Max Procs
    • Exit
    • Exercise 1 : Go Routine + Context + Channel
    • Exercise 2 : Worker (Go Routine + Channel + Context)
    • Exercise 3 : Random Worker (Go Routine + Channel + Context)
    • Exercise : Implementasi Goroutine dan Channel pada File CSV
  • Go Context
    • Pengenalan Context
    • Context Background & TODO
    • Context With Value
    • Context WithDeadline dan Context WithTimeout
    • Context WithCancel dan Context Done
  • Pengenalan HTTP
  • Go Native HTTP
    • HTTP Server
    • HTTP Server Multi Handler
    • HTTP Server dengan Serve Mux
    • HTTP Response Writer
    • HTTP Test
    • Routing
    • Konsep Middleware
    • Middleware
    • Get Query Parameter
    • Get Path Parameter
    • Request JSON
    • Request Form
    • Get dan Set Header
    • Get dan Set Cookie
    • Redirect
    • Serve File
    • Upload File
    • Download File
    • Hit Endpoint dengan Curl di Terminal
  • Go Gin Framework
    • HTTP Server
    • Router
    • Middleware
    • Get Query Parameter
    • Get Path Parameter
    • Request JSON
    • Request Form
    • Get dan Set Header
    • Get dan Set Cookie
    • Redirect
    • Serve File
    • Upload File
    • Download File
  • Golang dan Database
    • Instalasi MySQL dengan Docker Desktop
    • Instalasi PostgreSQL dengan Docker
    • Basic SQL
    • SQL Join
    • SQL Relation
    • Golang Database Driver
    • Golang dan SQL
  • Go Unit Test
    • Method di Package Testing
    • Package Assert & Require
    • Running Sub Test
    • Table Test
    • Generate Coverage Unit Testing dalam Bentuk HTML
  • Sonar Qube dan Sonar Scanner
  • Logging
  • Golang dan Redis
  • Golang dan RabbitMQ
    • Instalasi RabbitMQ dengan Docker
    • Instalasi Package RabbitMQ di Golang
    • Publisher dan Consumer
    • Publisher dan Multi Consumer
    • Setting RabbitMQ (Durable, Auto Delete dan Ack)
  • Git Command
  • Git Clone dengan SSH
  • Anotasi dan Package di Java Spring Boot
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  1. Operator di Golang

Assignment Operator

Assignment operator merupakan operasi untuk memberikkan nilai baru ke suatu variabel dengan tanda = atau dengan tanda +=, -=, *=, /= and %= yang fungsi-nya mirip operator arithmetic.

Contoh code assignment operator pada integer, float, complex dan string

Seluruh assignment operator dapat digunakan untuk integer. Untuk float tidak bisa menggunakan operator %=. Untuk complex juga tidak bisa menggunakan operator %=. Untuk string hanya bisa menggunakan operator =+ saja. Sementara untuk boolean tidak bisa digunakan semuanya.

package main

import (
	"fmt"
)

func main() {
	var a int = 2
	a += 4
	fmt.Println(a)

	a -= 3
	fmt.Println(a)

	a *= 2
	fmt.Println(a)

	a /= 3
	fmt.Println(a)

	a %= 2
	fmt.Println(a)

	var b float64 = 2.2
	b += 5
	fmt.Println(b)

	b -= 4
	fmt.Println(b)

	b *= 3
	fmt.Println(b)

	b /= 2
	fmt.Println(b)

	// b %= 2.0 // -> invalid operation: operator % not defined for b (variable of type float64)

	var c string = "test1"
	c += "test2"
	fmt.Println(c)

	// c -= "test3" // -> invalid operation: operator - not defined for c (variable of type string)

	// c *= "test3" // -> invalid operation: operator * not defined for c (variable of type string)

	// c /= "test3" // -> invalid operation: operator / not defined for c (variable of type string)

	var d bool = true
	fmt.Println(d)
	// d += false // -> invalid operation: operator + not defined for d (variable of type bool)

	// d /= false // -> invalid operation: operator / not defined for d (variable of type bool)
}
6
3
6
2
0
7.2
3.2
9.600000000000001
4.800000000000001
test1test2
true
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Last updated 1 year ago