Convert Go []byte to string (Casting, Builder, Buffer, strconv)
Convert go bytes to string with string(b), fmt.Sprintf, strings.Builder or bytes.Buffer, strconv for numbers, and know when copying happens for UTF-8 text and binary data.
Use Go as a Redis Client (go-redis, Ping, Get, Set, Hashes)
Connect a Go program to Redis with github.com/redis/go-redis/v9, Ping with context, Set and Get strings, and store hashes; run Redis locally and match password and DB settings.
Get Current Time in Milliseconds in Go (UnixMilli and Alternatives)
Convert time.Time to Unix milliseconds with UnixMilli, derive ms from UnixNano, or use Duration.Milliseconds after Sub; know int64 range limits from the time package docs.
Golang gRPC tutorial: server, client, and Protocol Buffers example
Golang grpc example and grpc golang tutorial: proto3 service, golang grpc server and grpc server golang with Register and Serve, go grpc client and go grpc example with grpc.NewClient and transport credentials, grpc go …
Golang integer types: int, int32, int64, uint, and sizes
Golang int and go int types, golang int types and sizes, golang int vs int32, uint and sized integers, byte and rune aliases, and how golang data types size depends on int versus int8–int64.
Golang CPU affinity on Linux: sched_setaffinity, taskset, GOMAXPROCS
Golang CPU affinity on Linux: cpu masking with golang.org/x/sys/unix SchedSetaffinity, taskset from Go, runtime.LockOSThread for set thread affinity, and why gomaxprocs golang is not affinity.
FlashDB in Go: in-memory key-value store with optional persistence
FlashDB golang tutorial: an in memory database golang option and golang key value store with Redis-style types. Covers go in memory database setup, transactions, string SET/GET/DELETE, disk vs pure memory, and links for …
Golang nil checks: pointers, interfaces, slices, and empty structs
Golang check if nil for pointers and maps; golang null pointer with == nil; check if slice is empty golang (len vs nil); golang check if struct is empty (not nil—reflect.IsZero); golang check if interface is nil …
Go HTTPS Client: Skip TLS Verify (InsecureSkipVerify) and Safer Options
Use tls.Config InsecureSkipVerify on a dedicated net/http Transport for golang http client skip tls verify only in dev; prefer fixing golang ssl certificate trust with RootCAs instead of golang disable ssl verification …
Golang flag package examples: CLI flags, multiple values, subcommands
Golang flag and golang flags examples using the standard library flag package: go flag and go CLI flags, golang flag example for string, int, and bool, golang flag multiple values with flag.Value, required flags, …
Golang seek on files: os.File.Seek and whence constants
Golang file seek and go file seek with (*os.File).Seek: io.SeekStart, io.SeekCurrent, io.SeekEnd, temp-file examples, and bytes.Reader for in-memory golang seek.
GraphQL in Go: golang graphql tutorial, examples, and HTTP server
Graphql golang tutorial and golang graphql example with github.com/graphql-go/graphql: schema, resolvers, graphql.Do, context, HTTP handler and Playground, go graphql patterns, graphql golang vs REST, and graphql mongodb …
Golang break and continue: inner loop, outer loop, and select
Golang break and golang continue for go break loop and golang break for loop; golang break outer loop and golang continue outer loop with labels; golang select break exits the select—use a label to leave the surrounding …
Golang Fiber CRUD API tutorial: routes, JSON, and Postman
Go fiber tutorial and golang fiber CRUD REST demo: fiber golang routing, fiber routes API with grouped paths, JSON handlers with Fiber, in-memory articles, Postman screenshots—practical codebase for fiber go and fiber …
Golang FIFO and named pipes: mkfifo, syscall.Mkfifo, EOF, open modes
Golang fifo and golang mkfifo: create fifo files with syscall.Mkfifo or mkfifo command in linux, golang named pipe reader and writer, O_RDONLY vs O_RDWR and EOF handling—linux fifo example and go fifo inter-process …
Golang bool to string: FormatBool, Sprintf, and string to bool
Golang bool to string and bool to string golang: strconv.FormatBool for golang convert bool to string, golang sprintf bool with fmt.Sprintf %t or %v, golang string to bool with strconv.ParseBool, go bool to string …
Golang base64 encode and decode with encoding/base64 and JSON
Golang base64 and base64 golang: StdEncoding EncodeToString DecodeString, URLEncoding, padding; golang base64 decode and base64 decode golang; golang json prevent encoding byte to base64 when json.Marshal treats []byte …
Golang sort slice and array: Ints, Slice, SliceStable, descending
Golang sort slice and go sort slice: sort.Ints, sort.Strings, golang sort array with a slice view, sort.Slice and sort.SliceStable, golang sort descending and reverse slice golang, sort.Sort with IntSlice and …
Golang Run Function at Intervals: Ticker, Sleep, and Cron Examples
Run repeated tasks in Go with time.NewTicker and time.Sleep, stop loops with context, avoid overlapping runs, and use robfig/cron/v3 for wall-clock schedules.
Golang escape backslash and escape string: raw literals vs "quoted"
Golang escape string and go escape string: golang escape backslash with doubled backslash in double-quoted strings, golang escape characters in interpreted literals, raw string literals for paths, and golang escape …
Golang array of structs and slice of structs: declare, init, iterate
Golang array of structs and golang struct array: [n]T fixed array vs []T slice, golang initialize array of structs with literals or loops, golang make array of structs with make, golang list of structs and go array of …
Go environment variables: getenv, setenv, lookup, go env, and .env files
Go environment variables and golang environment variables: golang get environment variable with LookupEnv, golang set environment variable with Setenv, go env vs process env (golang env, go env variables), env golang and …
Golang const array: why Go has no constant slices, and what to do instead
Golang const array and golang constant array: Go constants are only numbers, strings, booleans, and complex values built from those—no golang constant slice or const array type; patterns for golang const string array, go …
GOPATH vs GOROOT: what is GOROOT, go root, and how they differ
Gopath vs goroot and goroot vs gopath: what is goroot (go root / golang goroot), GOPATH for your workspace, why GOPATH and GOROOT must not be the same directory, go env GOROOT and go env GOPATH, modules and GOMODCACHE, …
Golang sed and awk examples from Go with os/exec
Golang sed and go sed: call sed and awk from Go with os/exec, stdin pipes, temp files, and notes on in-place edits and golang execute shell command patterns.
Golang new error: errors.New, fmt.Errorf, and custom errors
Golang new error and golang create error with errors.New and fmt.Errorf; errors new golang patterns, sentinels, errors.Is, %w wrapping, and custom types implementing error.
Remove or Delete Elements from a Slice in Go (First, Last, by Index)
Remove the first or last element from a slice in Go, delete by index while keeping order or in O(1) with swap-and-truncate, drop a run of elements, and use slices.Delete on Go 1.21+.
Golang append to slice: elements, another slice, and []byte rules
Golang append and append golang: golang add to slice, golang append to slice and golang slice append with variadic ..., golang append slice to slice, go append to array semantics, []byte plus string append, and always …
Golang cast to string: int, any, and bool with strconv and fmt
Golang cast to string and go cast to string: golang int to string and convert int to string golang with strconv and fmt; golang convert any to string and golang cast any to string with type switches and fmt.Sprint; bool …
Golang init function: syntax, rules, and order of execution
Golang init and go init: func init() rules, init order across imports and files, multiple init functions, blank imports, when to use or avoid init(), with spec-aligned examples.