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How to use New method of csv Package

Best K6 code snippet using csv.New

reader_test.go

Source:reader_test.go

...24	"github.com/apache/arrow/go/v9/arrow/csv"25	"github.com/apache/arrow/go/v9/arrow/memory"26)27func Example() {28	f := bytes.NewBufferString(`## a simple set of data: int64;float64;string290;0;str-0301;1;str-1312;2;str-2323;3;str-3334;4;str-4345;5;str-5356;6;str-6367;7;str-7378;8;str-8389;9;str-939`)40	schema := arrow.NewSchema(41		[]arrow.Field{42			{Name: "i64", Type: arrow.PrimitiveTypes.Int64},43			{Name: "f64", Type: arrow.PrimitiveTypes.Float64},44			{Name: "str", Type: arrow.BinaryTypes.String},45		},46		nil,47	)48	r := csv.NewReader(f, schema, csv.WithComment('#'), csv.WithComma(';'))49	defer r.Release()50	n := 051	for r.Next() {52		rec := r.Record()53		for i, col := range rec.Columns() {54			fmt.Printf("rec[%d][%q]: %v\n", n, rec.ColumnName(i), col)55		}56		n++57	}58	// check for reader errors indicating issues converting csv values59	// to the arrow schema types60	err := r.Err()61	if err != nil {62		log.Fatal(err)63	}64	// Output:65	// rec[0]["i64"]: [0]66	// rec[0]["f64"]: [0]67	// rec[0]["str"]: ["str-0"]68	// rec[1]["i64"]: [1]69	// rec[1]["f64"]: [1]70	// rec[1]["str"]: ["str-1"]71	// rec[2]["i64"]: [2]72	// rec[2]["f64"]: [2]73	// rec[2]["str"]: ["str-2"]74	// rec[3]["i64"]: [3]75	// rec[3]["f64"]: [3]76	// rec[3]["str"]: ["str-3"]77	// rec[4]["i64"]: [4]78	// rec[4]["f64"]: [4]79	// rec[4]["str"]: ["str-4"]80	// rec[5]["i64"]: [5]81	// rec[5]["f64"]: [5]82	// rec[5]["str"]: ["str-5"]83	// rec[6]["i64"]: [6]84	// rec[6]["f64"]: [6]85	// rec[6]["str"]: ["str-6"]86	// rec[7]["i64"]: [7]87	// rec[7]["f64"]: [7]88	// rec[7]["str"]: ["str-7"]89	// rec[8]["i64"]: [8]90	// rec[8]["f64"]: [8]91	// rec[8]["str"]: ["str-8"]92	// rec[9]["i64"]: [9]93	// rec[9]["f64"]: [9]94	// rec[9]["str"]: ["str-9"]95}96func Example_withChunk() {97	f := bytes.NewBufferString(`## a simple set of data: int64;float64;string980;0;str-0991;1;str-11002;2;str-21013;3;str-31024;4;str-41035;5;str-51046;6;str-61057;7;str-71068;8;str-81079;9;str-9108`)109	schema := arrow.NewSchema(110		[]arrow.Field{111			{Name: "i64", Type: arrow.PrimitiveTypes.Int64},112			{Name: "f64", Type: arrow.PrimitiveTypes.Float64},113			{Name: "str", Type: arrow.BinaryTypes.String},114		},115		nil,116	)117	r := csv.NewReader(118		f, schema,119		csv.WithComment('#'), csv.WithComma(';'),120		csv.WithChunk(3),121	)122	defer r.Release()123	n := 0124	for r.Next() {125		rec := r.Record()126		for i, col := range rec.Columns() {127			fmt.Printf("rec[%d][%q]: %v\n", n, rec.ColumnName(i), col)128		}129		n++130	}131	// Output:132	// rec[0]["i64"]: [0 1 2]133	// rec[0]["f64"]: [0 1 2]134	// rec[0]["str"]: ["str-0" "str-1" "str-2"]135	// rec[1]["i64"]: [3 4 5]136	// rec[1]["f64"]: [3 4 5]137	// rec[1]["str"]: ["str-3" "str-4" "str-5"]138	// rec[2]["i64"]: [6 7 8]139	// rec[2]["f64"]: [6 7 8]140	// rec[2]["str"]: ["str-6" "str-7" "str-8"]141	// rec[3]["i64"]: [9]142	// rec[3]["f64"]: [9]143	// rec[3]["str"]: ["str-9"]144}145func TestCSVReader(t *testing.T) {146	tests := []struct {147		Name   string148		File   string149		Header bool150	}{{151		Name:   "NoHeader",152		File:   "testdata/types.csv",153		Header: false,154	}, {155		Name:   "Header",156		File:   "testdata/header.csv",157		Header: true,158	}}159	for _, test := range tests {160		t.Run(test.Name, func(t *testing.T) {161			testCSVReader(t, test.File, test.Header)162		})163	}164}165var defaultNullValues = []string{"", "NULL", "null", "N/A"}166func testCSVReader(t *testing.T, filepath string, withHeader bool) {167	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())168	defer mem.AssertSize(t, 0)169	raw, err := ioutil.ReadFile(filepath)170	if err != nil {171		t.Fatal(err)172	}173	schema := arrow.NewSchema(174		[]arrow.Field{175			arrow.Field{Name: "bool", Type: arrow.FixedWidthTypes.Boolean},176			arrow.Field{Name: "i8", Type: arrow.PrimitiveTypes.Int8},177			arrow.Field{Name: "i16", Type: arrow.PrimitiveTypes.Int16},178			arrow.Field{Name: "i32", Type: arrow.PrimitiveTypes.Int32},179			arrow.Field{Name: "i64", Type: arrow.PrimitiveTypes.Int64},180			arrow.Field{Name: "u8", Type: arrow.PrimitiveTypes.Uint8},181			arrow.Field{Name: "u16", Type: arrow.PrimitiveTypes.Uint16},182			arrow.Field{Name: "u32", Type: arrow.PrimitiveTypes.Uint32},183			arrow.Field{Name: "u64", Type: arrow.PrimitiveTypes.Uint64},184			arrow.Field{Name: "f32", Type: arrow.PrimitiveTypes.Float32},185			arrow.Field{Name: "f64", Type: arrow.PrimitiveTypes.Float64},186			arrow.Field{Name: "str", Type: arrow.BinaryTypes.String},187			arrow.Field{Name: "ts", Type: arrow.FixedWidthTypes.Timestamp_ms},188		},189		nil,190	)191	r := csv.NewReader(bytes.NewReader(raw), schema,192		csv.WithAllocator(mem),193		csv.WithComment('#'), csv.WithComma(';'),194		csv.WithHeader(withHeader),195		csv.WithNullReader(true, defaultNullValues...),196	)197	defer r.Release()198	r.Retain()199	r.Release()200	if got, want := r.Schema(), schema; !got.Equal(want) {201		t.Fatalf("invalid schema: got=%v, want=%v", got, want)202	}203	out := new(bytes.Buffer)204	n := 0205	for r.Next() {206		rec := r.Record()207		for i, col := range rec.Columns() {208			fmt.Fprintf(out, "rec[%d][%q]: %v\n", n, rec.ColumnName(i), col)209		}210		n++211	}212	if got, want := n, 3; got != want {213		t.Fatalf("invalid number of rows: got=%d, want=%d", got, want)214	}215	want := `rec[0]["bool"]: [true]216rec[0]["i8"]: [-1]217rec[0]["i16"]: [-1]218rec[0]["i32"]: [-1]219rec[0]["i64"]: [-1]220rec[0]["u8"]: [1]221rec[0]["u16"]: [1]222rec[0]["u32"]: [1]223rec[0]["u64"]: [1]224rec[0]["f32"]: [1.1]225rec[0]["f64"]: [1.1]226rec[0]["str"]: ["str-1"]227rec[0]["ts"]: [1652054461000]228rec[1]["bool"]: [false]229rec[1]["i8"]: [-2]230rec[1]["i16"]: [-2]231rec[1]["i32"]: [-2]232rec[1]["i64"]: [-2]233rec[1]["u8"]: [2]234rec[1]["u16"]: [2]235rec[1]["u32"]: [2]236rec[1]["u64"]: [2]237rec[1]["f32"]: [2.2]238rec[1]["f64"]: [2.2]239rec[1]["str"]: ["str-2"]240rec[1]["ts"]: [1652140799000]241rec[2]["bool"]: [(null)]242rec[2]["i8"]: [(null)]243rec[2]["i16"]: [(null)]244rec[2]["i32"]: [(null)]245rec[2]["i64"]: [(null)]246rec[2]["u8"]: [(null)]247rec[2]["u16"]: [(null)]248rec[2]["u32"]: [(null)]249rec[2]["u64"]: [(null)]250rec[2]["f32"]: [(null)]251rec[2]["f64"]: [(null)]252rec[2]["str"]: [(null)]253rec[2]["ts"]: [(null)]254`255	if got, want := out.String(), want; got != want {256		t.Fatalf("invalid output:\ngot= %s\nwant=%s\n", got, want)257	}258	if r.Err() != nil {259		t.Fatalf("unexpected error: %v", r.Err())260	}261	// test error modes262	{263		r := csv.NewReader(bytes.NewReader(raw), schema,264			csv.WithAllocator(mem),265			csv.WithComment('#'), csv.WithComma(';'),266			csv.WithHeader(withHeader),267			csv.WithNullReader(true),268		)269		r.Next()270		r.Record()271		r.Release()272	}273}274func TestCSVReaderWithChunk(t *testing.T) {275	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())276	defer mem.AssertSize(t, 0)277	raw, err := ioutil.ReadFile("testdata/simple.csv")278	if err != nil {279		t.Fatal(err)280	}281	schema := arrow.NewSchema(282		[]arrow.Field{283			arrow.Field{Name: "i64", Type: arrow.PrimitiveTypes.Int64},284			arrow.Field{Name: "f64", Type: arrow.PrimitiveTypes.Float64},285			arrow.Field{Name: "str", Type: arrow.BinaryTypes.String},286		},287		nil,288	)289	for _, tc := range []struct {290		name    string291		opts    []csv.Option292		records int293		want    string294	}{295		{296			name:    "chunk=default",297			opts:    []csv.Option{csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';')},298			records: 10,299			want: `rec[0]["i64"]: [0]300rec[0]["f64"]: [0]301rec[0]["str"]: ["str-0"]302rec[1]["i64"]: [1]303rec[1]["f64"]: [1]304rec[1]["str"]: ["str-1"]305rec[2]["i64"]: [2]306rec[2]["f64"]: [2]307rec[2]["str"]: ["str-2"]308rec[3]["i64"]: [3]309rec[3]["f64"]: [3]310rec[3]["str"]: ["str-3"]311rec[4]["i64"]: [4]312rec[4]["f64"]: [4]313rec[4]["str"]: ["str-4"]314rec[5]["i64"]: [5]315rec[5]["f64"]: [5]316rec[5]["str"]: ["str-5"]317rec[6]["i64"]: [6]318rec[6]["f64"]: [6]319rec[6]["str"]: ["str-6"]320rec[7]["i64"]: [7]321rec[7]["f64"]: [7]322rec[7]["str"]: ["str-7"]323rec[8]["i64"]: [8]324rec[8]["f64"]: [8]325rec[8]["str"]: ["str-8"]326rec[9]["i64"]: [9]327rec[9]["f64"]: [9]328rec[9]["str"]: ["str-9"]329`,330		},331		{332			name: "chunk=0",333			opts: []csv.Option{334				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),335				csv.WithChunk(0),336			},337			records: 10,338			want: `rec[0]["i64"]: [0]339rec[0]["f64"]: [0]340rec[0]["str"]: ["str-0"]341rec[1]["i64"]: [1]342rec[1]["f64"]: [1]343rec[1]["str"]: ["str-1"]344rec[2]["i64"]: [2]345rec[2]["f64"]: [2]346rec[2]["str"]: ["str-2"]347rec[3]["i64"]: [3]348rec[3]["f64"]: [3]349rec[3]["str"]: ["str-3"]350rec[4]["i64"]: [4]351rec[4]["f64"]: [4]352rec[4]["str"]: ["str-4"]353rec[5]["i64"]: [5]354rec[5]["f64"]: [5]355rec[5]["str"]: ["str-5"]356rec[6]["i64"]: [6]357rec[6]["f64"]: [6]358rec[6]["str"]: ["str-6"]359rec[7]["i64"]: [7]360rec[7]["f64"]: [7]361rec[7]["str"]: ["str-7"]362rec[8]["i64"]: [8]363rec[8]["f64"]: [8]364rec[8]["str"]: ["str-8"]365rec[9]["i64"]: [9]366rec[9]["f64"]: [9]367rec[9]["str"]: ["str-9"]368`,369		},370		{371			name: "chunk=1",372			opts: []csv.Option{373				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),374				csv.WithChunk(1),375			},376			records: 10,377			want: `rec[0]["i64"]: [0]378rec[0]["f64"]: [0]379rec[0]["str"]: ["str-0"]380rec[1]["i64"]: [1]381rec[1]["f64"]: [1]382rec[1]["str"]: ["str-1"]383rec[2]["i64"]: [2]384rec[2]["f64"]: [2]385rec[2]["str"]: ["str-2"]386rec[3]["i64"]: [3]387rec[3]["f64"]: [3]388rec[3]["str"]: ["str-3"]389rec[4]["i64"]: [4]390rec[4]["f64"]: [4]391rec[4]["str"]: ["str-4"]392rec[5]["i64"]: [5]393rec[5]["f64"]: [5]394rec[5]["str"]: ["str-5"]395rec[6]["i64"]: [6]396rec[6]["f64"]: [6]397rec[6]["str"]: ["str-6"]398rec[7]["i64"]: [7]399rec[7]["f64"]: [7]400rec[7]["str"]: ["str-7"]401rec[8]["i64"]: [8]402rec[8]["f64"]: [8]403rec[8]["str"]: ["str-8"]404rec[9]["i64"]: [9]405rec[9]["f64"]: [9]406rec[9]["str"]: ["str-9"]407`,408		},409		{410			name: "chunk=3",411			opts: []csv.Option{412				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),413				csv.WithChunk(3),414			},415			records: 4,416			want: `rec[0]["i64"]: [0 1 2]417rec[0]["f64"]: [0 1 2]418rec[0]["str"]: ["str-0" "str-1" "str-2"]419rec[1]["i64"]: [3 4 5]420rec[1]["f64"]: [3 4 5]421rec[1]["str"]: ["str-3" "str-4" "str-5"]422rec[2]["i64"]: [6 7 8]423rec[2]["f64"]: [6 7 8]424rec[2]["str"]: ["str-6" "str-7" "str-8"]425rec[3]["i64"]: [9]426rec[3]["f64"]: [9]427rec[3]["str"]: ["str-9"]428`,429		},430		{431			name: "chunk=6",432			opts: []csv.Option{433				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),434				csv.WithChunk(6),435			},436			records: 2,437			want: `rec[0]["i64"]: [0 1 2 3 4 5]438rec[0]["f64"]: [0 1 2 3 4 5]439rec[0]["str"]: ["str-0" "str-1" "str-2" "str-3" "str-4" "str-5"]440rec[1]["i64"]: [6 7 8 9]441rec[1]["f64"]: [6 7 8 9]442rec[1]["str"]: ["str-6" "str-7" "str-8" "str-9"]443`,444		},445		{446			name: "chunk=10",447			opts: []csv.Option{448				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),449				csv.WithChunk(10),450			},451			records: 1,452			want: `rec[0]["i64"]: [0 1 2 3 4 5 6 7 8 9]453rec[0]["f64"]: [0 1 2 3 4 5 6 7 8 9]454rec[0]["str"]: ["str-0" "str-1" "str-2" "str-3" "str-4" "str-5" "str-6" "str-7" "str-8" "str-9"]455`,456		},457		{458			name: "chunk=11",459			opts: []csv.Option{460				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),461				csv.WithChunk(11),462			},463			records: 1,464			want: `rec[0]["i64"]: [0 1 2 3 4 5 6 7 8 9]465rec[0]["f64"]: [0 1 2 3 4 5 6 7 8 9]466rec[0]["str"]: ["str-0" "str-1" "str-2" "str-3" "str-4" "str-5" "str-6" "str-7" "str-8" "str-9"]467`,468		},469		{470			name: "chunk=-1",471			opts: []csv.Option{472				csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),473				csv.WithChunk(-1),474			},475			records: 1,476			want: `rec[0]["i64"]: [0 1 2 3 4 5 6 7 8 9]477rec[0]["f64"]: [0 1 2 3 4 5 6 7 8 9]478rec[0]["str"]: ["str-0" "str-1" "str-2" "str-3" "str-4" "str-5" "str-6" "str-7" "str-8" "str-9"]479`,480		},481	} {482		t.Run(tc.name, func(t *testing.T) {483			r := csv.NewReader(bytes.NewReader(raw), schema, tc.opts...)484			defer r.Release()485			r.Retain()486			r.Release()487			if got, want := r.Schema(), schema; !got.Equal(want) {488				t.Fatalf("invalid schema: got=%v, want=%v", got, want)489			}490			out := new(bytes.Buffer)491			n := 0492			for r.Next() {493				rec := r.Record()494				for i, col := range rec.Columns() {495					fmt.Fprintf(out, "rec[%d][%q]: %v\n", n, rec.ColumnName(i), col)496				}497				n++498			}499			if got, want := n, tc.records; got != want {500				t.Fatalf("invalid number of records: got=%d, want=%d", got, want)501			}502			if got, want := out.String(), tc.want; got != want {503				t.Fatalf("invalid output:\ngot:\n%s\nwant:\n%s\n", got, want)504			}505			if r.Err() != nil {506				t.Fatalf("unexpected error: %v", r.Err())507			}508		})509	}510}511func BenchmarkRead(b *testing.B) {512	gen := func(rows, cols int) []byte {513		buf := new(bytes.Buffer)514		for i := 0; i < rows; i++ {515			for j := 0; j < cols; j++ {516				if j > 0 {517					fmt.Fprintf(buf, ";")518				}519				fmt.Fprintf(buf, "%d;%f;str-%d", i, float64(i), i)520			}521			fmt.Fprintf(buf, "\n")522		}523		return buf.Bytes()524	}525	for _, rows := range []int{10, 1e2, 1e3, 1e4, 1e5} {526		for _, cols := range []int{1, 10, 100, 1000} {527			raw := gen(rows, cols)528			for _, chunks := range []int{-1, 0, 10, 100, 1000} {529				b.Run(fmt.Sprintf("rows=%d cols=%d chunks=%d", rows, cols, chunks), func(b *testing.B) {530					benchRead(b, raw, rows, cols, chunks)531				})532			}533		}534	}535}536func benchRead(b *testing.B, raw []byte, rows, cols, chunks int) {537	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())538	defer mem.AssertSize(b, 0)539	var fields []arrow.Field540	for i := 0; i < cols; i++ {541		fields = append(fields, []arrow.Field{542			arrow.Field{Name: fmt.Sprintf("i64-%d", i), Type: arrow.PrimitiveTypes.Int64},543			arrow.Field{Name: fmt.Sprintf("f64-%d", i), Type: arrow.PrimitiveTypes.Float64},544			arrow.Field{Name: fmt.Sprintf("str-%d", i), Type: arrow.BinaryTypes.String},545		}...)546	}547	schema := arrow.NewSchema(fields, nil)548	chunk := 0549	if chunks != 0 {550		chunk = rows / chunks551	}552	opts := []csv.Option{553		csv.WithAllocator(mem), csv.WithComment('#'), csv.WithComma(';'),554		csv.WithChunk(chunk),555	}556	b.ResetTimer()557	for i := 0; i < b.N; i++ {558		r := csv.NewReader(bytes.NewReader(raw), schema, opts...)559		n := int64(0)560		for r.Next() {561			n += r.Record().NumRows()562		}563		r.Release()564		if n != int64(rows) {565			b.Fatalf("invalid number of rows. want=%d, got=%d", n, rows)566		}567	}568}...

readCsv.go

Source:readCsv.go

...63		log.Fatalf("can not open the file, err is %+v", err)64		fmt.Printf("can not open the file, err is %+v", err)65	}66	defer fs.Close()67	r := csv.NewReader(fs)68	//éå¯¹å¤§æä»¶ï¼ä¸è¡ä¸è¡çè¯»åæä»¶69	for {70		row, err := r.Read()71		if err != nil && err != io.EOF {72			log.Fatalf("can not read, err is %+v", err)73			fmt.Printf("can not read, err is %+v", err)74		}75		if err == io.EOF {76			break77		}78		fmt.Println(row)79	}80	//éå¯¹å°æä»¶ï¼ä¹å¯ä»¥ä¸æ¬¡æ§è¯»åææçæä»¶81	//æ³¨æï¼rè¦éæ°èµå¼ï¼å ä¸ºreadallæ¯è¯»åå©ä¸ç82	fs1, _ := os.Open(fileName)83	r1 := csv.NewReader(fs1)84	content, err := r1.ReadAll()85	if err != nil {86		log.Fatalf("can not readall, err is %+v", err)87		fmt.Printf("can not readall, err is %+v", err)88	}89	for _, row := range content {90		fmt.Println(row)91	}92	//åå»ºä¸ä¸ªæ°æä»¶93	newFileName := outPath94	//è¿æ ·æå¼ï¼æ¯æ¬¡é½ä¼æ¸ç©ºæä»¶åå®¹95	//nfs, err := os.Create(newFileName)96	//è¿æ ·å¯ä»¥è¿½å å97	nfs, err := os.OpenFile(newFileName, os.O_RDWR|os.O_CREATE, 0666)98	if err != nil {99		log.Fatalf("can not create file, err is %+v", err)100		fmt.Printf("can not create file, err is %+v", err)101	}102	defer nfs.Close()103	nfs.Seek(0, io.SeekEnd)104	w := csv.NewWriter(nfs)105	//è®¾ç½®å±æ§106	w.Comma = ','107	w.UseCRLF = true108	row := []string{"1", "2", "3", "4", "5,6"}109	err = w.Write(row)110	if err != nil {111		log.Fatalf("can not write, err is %+v", err)112		fmt.Printf("can not write, err is %+v", err)113	}114	//è¿éå¿é¡»å·æ°ï¼æè½å°æ°æ®åå¥æä»¶ã115	w.Flush()116	//ä¸æ¬¡åå¥å¤è¡117	var newContent [][]string118	newContent = append(newContent, []string{"1", "2", "3", "4", "5", "6"})...

record.go

Source:record.go

...81	return other82}83// WriteCSV - encodes to CSV data.84func (r *Record) WriteCSV(writer io.Writer, opts sql.WriteCSVOpts) error {85	w := csv.NewWriter(writer)86	w.Comma = opts.FieldDelimiter87	w.AlwaysQuote = opts.AlwaysQuote88	w.Quote = opts.Quote89	w.QuoteEscape = opts.QuoteEscape90	if err := w.Write(r.csvRecord); err != nil {91		return err92	}93	w.Flush()94	if err := w.Error(); err != nil {95		return err96	}97	return nil98}99// WriteJSON - encodes to JSON data.100func (r *Record) WriteJSON(writer io.Writer) error {101	var kvs jstream.KVS = make([]jstream.KV, len(r.columnNames))102	for i := 0; i < len(r.columnNames); i++ {103		kvs[i] = jstream.KV{Key: r.columnNames[i], Value: r.csvRecord[i]}104	}105	return json.NewEncoder(writer).Encode(kvs)106}107// Raw - returns the underlying data with format info.108func (r *Record) Raw() (sql.SelectObjectFormat, interface{}) {109	return sql.SelectFmtCSV, r110}111// Replace - is not supported for CSV112func (r *Record) Replace(_ interface{}) error {113	return errors.New("Replace is not supported for CSV")114}115// NewRecord - creates new CSV record.116func NewRecord() *Record {117	return &Record{}118}...

New

Using AI Code Generation

1import (2func main() {3    file, err := os.Open("file.csv")4    if err != nil {5        panic(err)6    }7    defer file.Close()8    reader := csv.NewReader(file)9    reader.Comma = ';'10    rawCSVdata, err := reader.ReadAll()11    if err != nil {12        panic(err)13    }14    for _, record := range rawCSVdata {15        for _, item := range record {16            print(item + " ")17        }18        println()19    }20}

New

Using AI Code Generation

1import (2func main() {3    file, err := os.Open("data.csv")4    if err != nil {5        fmt.Println(err)6    }7    defer file.Close()8    reader := csv.NewReader(file)9    rows, err := reader.ReadAll()10    if err != nil {11        fmt.Println(err)12    }13    for _, row := range rows {14        fmt.Println(row)15    }16}17import (18func main() {19    file, err := os.Open("data.csv")20    if err != nil {21        fmt.Println(err)22    }23    defer file.Close()24    reader := csv.NewReader(file)25    for {26        row, err := reader.Read()27        if err != nil {28            fmt.Println(err)29        }30        fmt.Println(row)31    }32}33import (34func main() {35    file, err := os.Open("data.csv")36    if err != nil {37        fmt.Println(err)38    }39    defer file.Close()40    reader := csv.NewReader(file)41    rows, err := reader.ReadAll()42    if err != nil {43        fmt.Println(err)44    }45    for _, row := range rows {46        fmt.Println(row)47    }48}

New

Using AI Code Generation

1import (2func main() {3	file, err := os.Open("data.csv")4	if err != nil {5		fmt.Println(err)6	}7	defer file.Close()8	reader := csv.NewReader(file)9	rawCSVdata, err := reader.ReadAll()10	if err != nil {11		fmt.Println(err)12		os.Exit(1)13	}14	fmt.Println(rawCSVdata)15}16import (17func main() {18	file, err := os.Open("data.csv")19	if err != nil {20		fmt.Println(err)21	}22	defer file.Close()23	reader := csv.NewReader(file)24	rawCSVdata, err := reader.ReadAll()25	if err != nil {26		fmt.Println(err)27		os.Exit(1)28	}29	fmt.Println(rawCSVdata)30}31import (32func main() {33	file, err := os.Open("data.csv")34	if err != nil {35		fmt.Println(err)36	}37	defer file.Close()38	reader := csv.NewReader(file)39	rawCSVdata, err := reader.ReadAll()40	if err != nil {41		fmt.Println(err)42		os.Exit(1)43	}44	fmt.Println(rawCSVdata)45}46import (47func main() {48	file, err := os.Open("data

New

Using AI Code Generation

1import (2func main() {3	csvFile, err := os.Create("test.csv")4	if err != nil {5		fmt.Println(err)6	}7	csvWriter := csv.NewWriter(csvFile)8	csvWriter.Write([]string{"Name", "Age"})9	csvWriter.Write([]string{"Ram", "25"})10	csvWriter.Write([]string{"Shyam", "26"})11	csvWriter.Write([]string{"Hari", "27"})12	csvWriter.Write([]string{"Sita", "28"})13	csvWriter.Flush()14	csvFile.Close()15}16import (17func main() {18	csvFile, err := os.Open("test.csv")19	if err != nil {20		fmt.Println(err)21	}22	csvReader := csv.NewReader(csvFile)23	lines, err := csvReader.ReadAll()24	if err != nil {25		fmt.Println(err)26	}27	for _, line := range lines {28		fmt.Println(line)29	}30}31import (32func main() {33	csvFile, err := os.Open("test.csv")34	if err != nil {35		fmt.Println(err)36	}37	csvReader := csv.NewReader(csvFile)

New

Using AI Code Generation

1import (2func main() {3    f, err := os.Create("test.csv")4    if err != nil {5        fmt.Println(err)6    }7    writer := csv.NewWriter(f)8    writer.Write([]string{"Name", "Class", "Marks"})9    writer.Write([]string{"Ram", "10", "90"})10    writer.Write([]string{"Shyam", "10", "80"})11    writer.Write([]string{"Ravi", "10", "70"})12    writer.Write([]string{"Raj", "10", "60"})13    writer.Write([]string{"Rahul", "10", "50"})14    writer.Flush()15    f.Close()16}17import (18func main() {19    f, err := os.Open("test.csv")20    if err != nil {21        fmt.Println(err)22    }23    reader := csv.NewReader(f)24    data, err := reader.ReadAll()25    if err != nil {26        fmt.Println(err)27    }28    for _, row := range data {29        fmt.Println(row)30    }31}32import (

New

Using AI Code Generation

1import (2func main() {3    f, err := os.Open("data.csv")4    if err != nil {5        log.Fatal(err)6    }7    defer f.Close()8    r := csv.NewReader(f)9    records, err := r.ReadAll()10    if err != nil {11        log.Fatal(err)12    }13    for _, record := range records {14        fmt.Println(record)15    }16}

New

Using AI Code Generation

1import (2func main() {3    csvFile, _ := os.Open("test.csv")4    reader := csv.NewReader(csvFile)5    csvData, _ := reader.ReadAll()6    for _, each := range csvData {7        fmt.Println(each)8    }9}10import (11func main() {12    csvFile, _ := os.Open("test.csv")13    reader := csv.NewReader(csvFile)14    csvData, _ := reader.ReadAll()15    for _, each := range csvData {16        fmt.Println(each)17    }18}19import (20func main() {21    csvFile, _ := os.Open("test.csv")22    reader := csv.NewReader(csvFile)23    csvData, _ := reader.ReadAll()24    for _, each := range csvData {25        fmt.Println(each)26    }27}28import (29func main() {30    csvFile, _ := os.Open("test.csv")31    reader := csv.NewReader(csvFile)32    csvData, _ := reader.ReadAll()33    for _, each := range csvData {34        fmt.Println(each)35    }36}37import (38func main() {39    csvFile, _ := os.Open("test.csv")40    reader := csv.NewReader(csvFile)

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.