Golang ProgramsGolang Programs

Golang write CSV records

The csv package have a NewWriter() function which returns a Writer object which is used for writing CSV data. A csv.Writer writes csv records which are terminated by a newline and uses a comma as the field delimiter. The following source code snippet shows how to write data to a CSV file.
package main
import (
func main() {
	rows := [][]string{
		{"Name", "City", "Language"},
		{"Pinky", "London", "Python"},
		{"Nicky", "Paris", "Golang"},
		{"Micky", "Tokyo", "Php"},
	csvfile, err := os.Create("test.csv")
	if err != nil {
		log.Fatalf("failed creating file: %s", err)
	csvwriter := csv.NewWriter(csvfile)
	for _, row := range rows {
		_ = csvwriter.Write(row)

A two-dimensional slice rows contains sample csv records. The os.Create() function creates a csv file test.csv; truncate all it's records if already exists and returning an instance of os.File object. The csvwriter.Write(row) method is called to write each slice of strings to the file as CSV records.