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https://yourbasic.org/golang/implement-stack/ A basic stack (LIFO) data structure · YourBasic Go May 22, 2019 - CODE EXAMPLE You can implement a stack (LIFO queue) data structure in Go with a slice and the append function. data structure basic stack lifo go https://yourbasic.org/ Algorithms to Go · YourBasic Nov 11, 2022 - Texts about programming, algorithms and Go, with plenty of code examples. algorithms yourbasic https://yourbasic.org/golang/round-float-2-decimal-places/ Round float to 2 decimal places · YourBasic Go CODE EXAMPLE How to round a float to a string/float with 2 decimal places in Go. decimal places round float yourbasic go https://yourbasic.org/golang/untyped-constants/ Untyped numeric constants with no limits · YourBasic Go Jun 1, 2019 - Numeric constants in Go have no limits and can be untyped. When it's used in a context that requires a type, a type will be inferred and a limit applied. numeric constants limits yourbasic go https://yourbasic.org/golang/for-loop-range-array-slice-map-channel/ 4 basic range loop (for-each) patterns · YourBasic Go Feb 17, 2020 - CODE EXAMPLE A range loop is used to iterate over the values in a slice, array or channel, the keys and values in a map, or the characters in a string. basic range loop patterns go https://yourbasic.org/golang/data-races-explained/ Data races explained · YourBasic Go Jul 20, 2019 - CODE EXAMPLE A data race is easily introduced by mistake and can lead to situations that are very hard to debug. This article explains how to avoid this... data races explained yourbasic go https://yourbasic.org/golang/make-slice-map-channel/ Make slices, maps and channels · YourBasic Go How to use the make function to create slices, maps and channels in Go. make slices maps channels yourbasic https://yourbasic.org/golang/trim-whitespace-from-string/ 3 ways to trim whitespace (or other characters) from a string · YourBasic Go Sep 15, 2018 - CODE EXAMPLE Use the strings.TrimSpace function to strip leading and trailing whitespace from a string. ways trim whitespace characters string https://yourbasic.org/golang/generate-random-string/ Generate a random string (password) · YourBasic Go Mar 27, 2019 - CODE EXAMPLE How to generate a random string with restrictions (at least one special character, etc). random string generate password yourbasic go https://yourbasic.org/golang/nutshells/ Go step by step · YourBasic Go Apr 2, 2019 - Detailed descriptions of core Go concepts: interfaces, slices, maps, for loops, switch statements, packages. go step yourbasic https://yourbasic.org/golang/channels-explained/ Channels offer synchronized communication · YourBasic Go Jul 20, 2019 - CODE EXAMPLE A channel is a mechanism for two goroutines to synchronize execution and communicate by passing values. channels offer synchronized communication yourbasic https://yourbasic.org/golang/slice-of-keys-values-from-map/ Get slices of keys and values from a map · YourBasic Go CODE EXAMPLE You can use a range statement to extract slices of keys and values from a map in Go. get slices keys values map https://yourbasic.org/golang/reverse-utf8-string/ How to reverse a string by byte or rune · YourBasic Go Oct 18, 2018 - CODE EXAMPLE How to reverse a UTF-8 encoded string in Go. reverse string byte rune yourbasic https://yourbasic.org/golang/do-while-loop/ 2 patterns for a do-while loop in Go · YourBasic Go Jan 18, 2019 - CODE EXAMPLE You can write a do-while or repeat-until loop in Go with a for statement. patterns loop go yourbasic https://yourbasic.org/algorithms/ Algorithms explained · YourBasic Nov 11, 2022 - Introduction to algorithms, data structures and algorithm analysis, all with plenty of code examples. algorithms explained yourbasic https://yourbasic.org/golang/errors-explained/ Error handling best practice · YourBasic Go Mar 12, 2019 - CODE EXAMPLE Go uses return values that implement the error interface to indicate errors. Panics are similar to C++ and Java exceptions, but are only intended... error handling best practice yourbasic go https://yourbasic.org/golang/detect-data-races/ How to detect data races · YourBasic Go By starting your application with the '-race' option, the Go runtime might be able to detect and inform you about data races. detect data races yourbasic go https://yourbasic.org/golang/int-vs-int64/ Pick the right one: int vs. int64 · YourBasic Go Mar 19, 2019 - An index, length or capacity should normally be an int. The types int8, int16, int32, and int64 are best suited for data. right one pick int vs yourbasic https://yourbasic.org/golang/last-item-in-slice/ Last item in a slice/array · YourBasic Go Sep 14, 2018 - CODE EXAMPLE Use a[len(a)-1] to access the last element of a. last item slice array yourbasic https://yourbasic.org/golang/generate-permutation-slice-string/ Generate all permutations · YourBasic Go Jun 30, 2018 - CODE EXAMPLE How to generate all permutations of a slice or string in Go. generate permutations yourbasic go https://yourbasic.org/golang/named-return-values-parameters/ Named return values [best practice] · YourBasic Go Apr 2, 2019 - CODE EXAMPLE In Go result parameters may be named and used as regular variables. best practice named return values yourbasic https://yourbasic.org/golang/string-functions-reference-cheat-sheet/ Go string handling overview [cheat sheet] · YourBasic Go Feb 1, 2020 - CODE EXAMPLE 40+ essential string functions: literals, concatenation, equality, ordering, indexing, UTF-8, search, join, replace, split, trim, strip,... cheat sheet go string handling overview https://yourbasic.org/golang/regexp-cheat-sheet/ Regexp tutorial and cheat sheet · YourBasic Go Apr 7, 2019 - Regular expressions in Go: introduction, cheat sheet and plenty of code examples. cheat sheet regexp tutorial yourbasic go https://yourbasic.org/golang/absolute-value-int-float/ Compute absolute value of an int/float · YourBasic Go Jun 30, 2018 - CODE EXAMPLE Write your own code to compute the absolute value of an integer, but use math.Abs for floating point numbers. absolute value compute int float yourbasic https://yourbasic.org/golang/find-type-of-object/ Find the type of an object · YourBasic Go May 9, 2019 - You can find type information about an interface variable with the fmt package, type assertions, type switches or reflection. find type object yourbasic go https://yourbasic.org/golang/go-java-tutorial/ Java to Go in-depth tutorial · YourBasic Go Mar 11, 2020 - A tutorial to help Java programmers come up to speed quickly with Go. It compares the languages and offers plenty of code examples. java go depth tutorial yourbasic https://yourbasic.org/golang/package-documentation/ Package documentation · YourBasic Go Sep 15, 2018 - How to create and download Go package documentation. package documentation yourbasic go https://yourbasic.org/golang/convert-int-to-string/ Convert between int, int64 and string · YourBasic Go Jun 26, 2019 - CODE EXAMPLE Use strconv.Itoa to convert an int to a decimal string, and strconv.Atoi to parse a string to an int. convert int string yourbasic go https://yourbasic.org/golang/formatting-byte-size-to-human-readable-format/ Format byte size as kilobytes, megabytes, gigabytes, ... · YourBasic Go Jul 1, 2018 - CODE EXAMPLE Utility functions for converting byte size to human-readable format. The code supports both SI and IEC formats. format byte size yourbasic go https://yourbasic.org/golang/find-search-contains-slice/ Find element in slice/array with linear or binary search · YourBasic Go Jul 17, 2019 - CODE EXAMPLE To check if a slice or array contains an element, you can either write your own linear search or use one of the provided binary search functions. binary search find element slice array https://yourbasic.org/golang/redeclaring-variables/ Redeclaring variables · YourBasic Go Variables can be redeclared in short multi-variable declarations where at least one new variable is introduced. variables yourbasic go https://yourbasic.org/golang/max-min-function/ Compute max of two ints/floats · YourBasic Go Jun 30, 2018 - CODE EXAMPLE Write your own code to compute the minimum and maximum of integers, but use math.Min and math.Max for floating point numbers. compute max two ints floats https://yourbasic.org/golang/check-prime/ Check if a number is prime · YourBasic Go Apr 29, 2018 - CODE EXAMPLE To check if a number is prime in Go use the ProbablyPrime function from package math/big. check number prime yourbasic go https://yourbasic.org/golang/detect-deadlock/ How to debug deadlocks · YourBasic Go Jul 20, 2019 - CODE EXAMPLE The Go runtime can often detect when a program freezes because of a deadlock. This article explains how to debug and solve such issues. debug yourbasic go https://yourbasic.org/golang/how-to-sort-in-go/ The 3 ways to sort in Go · YourBasic Go Mar 30, 2019 - CODE EXAMPLE How to sort any type of data in Go using the sort package. All algorithms in the package perform O(n log n) comparisons in the worst case. ways sort go yourbasic https://yourbasic.org/golang/three-dots-ellipsis/ 3 dots in 4 places · YourBasic Go Mar 20, 2018 - The dot dot dot (...) notation is used in four different ways in Go: for variadic function parameters, as arguments to variadic functions, for array literals,... dots places yourbasic go https://yourbasic.org/golang/variadic-function/ Variadic functions (...T) · YourBasic Go Aug 11, 2018 - CODE EXAMPLE A variadic function can be called with a variable number of arguments. You can pass a slice directly to a variadic function using the three dots... functions yourbasic go https://yourbasic.org/golang/remove-duplicate-whitespace/ Remove all duplicate whitespace · YourBasic Go CODE EXAMPLE The regexp \s+ can be used to delete duplicate whitespace from a string. remove duplicate whitespace yourbasic go https://yourbasic.org/golang/command-line-arguments/ Command-line arguments and flags · YourBasic Go Sep 15, 2018 - CODE EXAMPLE You can access command-line arguments, including the program name and flags, through the os.Args variable. command line arguments flags yourbasic go https://yourbasic.org/golang/gotcha-function-doesnt-change-array/ Help: Array won’t change · YourBasic Go Jun 1, 2019 - CODE EXAMPLE Arrays in Go are values: when you pass an array to a function it gets a copy of the original array data. If you want a function to update its... help array change yourbasic go https://yourbasic.org/golang/compiler-error-messages/ Learn to love your compiler · YourBasic Go Feb 3, 2019 - Confusing Go compiler error messages: what they mean and how to fix the problem. learn love compiler yourbasic go https://yourbasic.org/golang/wait-for-goroutines-waitgroup/ Waiting for goroutines · YourBasic Go Jul 20, 2019 - CODE EXAMPLE A sync.WaitGroup waits for a group of goroutines to finish. waiting yourbasic go https://yourbasic.org/golang/bitwise-operator-cheat-sheet/ Bitwise operators [cheat sheet] · YourBasic Go Aug 21, 2019 - To manipulate bits your can use operators (bitwise NOT, AND, OR, XOR, left and right shift) and functions in package math/bits (bitcount, rotate, reverse,... cheat sheet bitwise operators yourbasic go https://yourbasic.org/golang/structs-explained/ Create, initialize and compare structs · YourBasic Go Mar 8, 2019 - CODE EXAMPLE A struct is a typed collection of fields, useful for grouping data into records. create initialize compare structs yourbasic https://yourbasic.org/golang/overload-overwrite-optional-parameter/ Optional parameters, default parameter values and method overloading · YourBasic Go Jan 29, 2019 - Go does not have optional parameters or default parameter values, nor does it support method overloading. Method overloading is emulated by writing several... optional parameters default values method https://yourbasic.org/golang/gotcha-multiple-value-single-value-context/ Help: Multiple-value in single-value context · YourBasic Go May 25, 2019 - CODE EXAMPLE When a function returns multiple values, you must take care of each one. You can use the blank identifier (underscore) to ignore unwanted return... help multiple value single context https://yourbasic.org/golang/shuffle-slice-array/ Shuffle a slice or array · YourBasic Go Mar 27, 2019 - CODE EXAMPLE How to create a random permutation of a slice or array in Go. shuffle slice array yourbasic go https://yourbasic.org/golang/compare-slices/ 3 ways to compare slices (arrays) · YourBasic Go Feb 6, 2019 - CODE EXAMPLE You typically want to write your own code to compare slices. However, use the optimized bytes.Equal for byte slices, and for testing consider... ways compare slices arrays yourbasic https://yourbasic.org/golang/recover-from-panic/ Panics, stack traces and how to recover [best practice] · YourBasic Go Jul 17, 2019 - CODE EXAMPLE A panic stops the normal execution of a goroutine and prints a stack trace to the console. The recover function can be used to catch a panic and... best practice panics stack traces recover https://yourbasic.org/golang/operators/ Operators: complete list · YourBasic Go Jun 13, 2019 - List of all Go operators (arithmetic, equality, comparison, logical, bitwise and other) with descriptions and operator priority. complete list operators yourbasic go https://yourbasic.org/golang/defer/ Defer a function call (with return value) · YourBasic Go May 9, 2019 - CODE EXAMPLE A deferred function is executed when the surrounding function returns, either on exit or on panic. Deferred functions are commonly used for... defer function call return value https://yourbasic.org/golang/interface-to-string/ Convert interface to string · YourBasic Go To get a string representation of an interface value in Go, use the fmt.Sprintf function. convert interface string yourbasic go https://yourbasic.org/about/ About · YourBasic Jul 29, 2025 - This is where Stefan Nilsson writes about coding, algorithms, data structures and Go. yourbasic https://yourbasic.org/golang/days-between-dates/ Days between two dates · YourBasic Go Oct 25, 2018 - CODE EXAMPLE How to calculate the number of days between two dates in Go. days two dates yourbasic go https://yourbasic.org/golang/generate-uuid-guid/ Generate a unique string (UUID, GUID) · YourBasic Go Apr 2, 2019 - CODE EXAMPLE You can use the rand.Read function from package crypto/rand to generate a basic UUID. generate unique string uuid guid https://yourbasic.org/golang/slices-explained/ Slices/arrays explained: create, index, slice, iterate · YourBasic Go Feb 11, 2020 - CODE EXAMPLE A slice refers to a section of an underlying array. It can grow and shrink within the bounds of this array. slices arrays explained create index https://yourbasic.org/golang/package-init-function-main-execution-order/ Package initialization and program execution order · YourBasic Go Sep 15, 2018 - Imported packages are initialized before the package itself. Packages are initialized one at a time: first package-level variables are initialized in... package initialization program execution order https://yourbasic.org/golang/getting-started-hello-world/ Go beginner’s guide: top 4 resources to get you started · YourBasic Go Apr 12, 2019 - How to write 'Hello world' and get started with Go programming: try it out, learn the basics, install the tools, and start a project. guide top go resources get started https://yourbasic.org/golang/day-month-year-from-time/ Get year, month, day from time · YourBasic Go May 19, 2018 - CODE EXAMPLE How to get the day/month/year as integers from a time.Time in Go. get year month day time https://yourbasic.org/golang/tutorials/ Go tutorials · YourBasic Go Apr 22, 2018 - Golang tutorials for beginners and experienced developers alike: best practices and production-quality code examples. go tutorials yourbasic https://yourbasic.org/golang/convert-string-to-float/ Convert between float and string · YourBasic Go Jan 18, 2019 - CODE EXAMPLE Use strconv.ParseFloat to parse a floating point number from a string, and fmt.Sprintf to format a float as a string. convert float string yourbasic go https://yourbasic.org/golang/efficient-parallel-computation/ 3 rules for efficient parallel computation · YourBasic Go Jul 20, 2019 - CODE EXAMPLE To efficiently schedule parallel computation on separate CPUs is more of an art than a science. This article gives some rules of thumb. rules efficient parallel computation yourbasic https://yourbasic.org/golang/function-pointer-type-declaration/ Function types and values · YourBasic Go Jun 29, 2018 - CODE EXAMPLE Functions in Go are first class citizens: function types and function values can be used and passed around just like other values. function types values yourbasic go https://yourbasic.org/golang/log-to-file/ Write log to file (or /dev/null) · YourBasic Go Apr 12, 2019 - CODE EXAMPLE Use os.OpenFile with arguments os.O_APPEND | os.O_CREATE | os.O_WRONLY and 0644 to create and open a log file. To disable all output from a logger... dev null write log file yourbasic https://yourbasic.org/golang/ Go go-to guide · YourBasic Nov 4, 2022 - Become a better Go programmer with these tutorials and code examples. go guide yourbasic https://yourbasic.org/golang/io-reader-interface-explained/ How to use the io.Reader interface · YourBasic Go Sep 15, 2018 - CODE EXAMPLE An io.Reader is an entity from which you can read a stream of bytes. The standard library has many Reader implementations, including in-memory... use io reader interface yourbasic https://yourbasic.org/golang/current-time/ How to get current timestamp · YourBasic Go Jun 27, 2018 - CODE EXAMPLE To get a second/nanosecond timestamp use time.Now and time.Unix or time.UnixNano. get current timestamp yourbasic go https://yourbasic.org/golang/concurrent-programming/ Concurrent programming · YourBasic Go Feb 22, 2019 - This tutorial covers concurrency patterns, goroutines, channels, deadlock, data race, timer, ticker, waitgroup, and efficient parallel computation. concurrent programming yourbasic go https://yourbasic.org/golang/convert-string-to-rune-slice/ Convert between rune array/slice and string · YourBasic Go Mar 12, 2019 - CODE EXAMPLE When you convert a string to a rune slice (array), you get a new slice that contains the Unicode code points (runes) of the string. convert rune array slice string https://yourbasic.org/golang/round-float-to-int/ Round float to integer value · YourBasic Go CODE EXAMPLE How to round a float64 to the nearest integer: round away from zero, round to even number, convert to an int type. round float integer value yourbasic https://yourbasic.org/golang/copy-explained/ How to use the copy function · YourBasic Go Sep 14, 2018 - The copy function copies elements to and from a slice. It returns the number of elements copied, which will be the minimum of len(dst) and len(src). use copy function yourbasic go https://yourbasic.org/golang/hash-md5-sha256-string-file/ Hash checksums: MD5, SHA-1, SHA-256 · YourBasic Go Jun 23, 2018 - CODE EXAMPLE To compute the hash value of a string or byte slice, use the Sum function from crypto package md5, sha1 or sha256. For a file or input stream you... hash checksums sha yourbasic go https://yourbasic.org/golang/constructor-best-practice/ Constructors deconstructed [best practice] · YourBasic Go May 12, 2018 - CODE EXAMPLE Best practice in Go is to use suitable zero values and factories instead of constructors. best practice constructors deconstructed yourbasic go https://yourbasic.org/golang/day-of-week-int/ How to find the day of week · YourBasic Go May 19, 2018 - CODE EXAMPLE How to get the day of week as an integer from a time.Time in Go. find day week yourbasic go https://yourbasic.org/golang/underscore/ Blank identifier (underscore) · YourBasic Go Apr 24, 2018 - The blank identifier is an anonymous placeholder. It can be used to ignore values, import only for side effects, or to silence the compiler. blank identifier underscore yourbasic go https://yourbasic.org/golang/implement-set/ 2 basic set implementations · YourBasic Go Jan 25, 2019 - CODE EXAMPLE To implement a set in Go you can use a key-value map with boolean or empty struct values. basic set implementations yourbasic go https://yourbasic.org/golang/switch-statement/ 5 switch statement patterns · YourBasic Go Jul 16, 2019 - CODE EXAMPLE A switch-case-default statement is a shorter and cleaner way to write a sequence of if-else statements. switch statement patterns yourbasic go https://yourbasic.org/golang/pointer-vs-value-receiver/ Pointer vs. value receiver · YourBasic Go Apr 14, 2018 - Guidelines on how to choose between pointer and value receivers for Go methods. pointer vs value receiver yourbasic https://yourbasic.org/golang/convert-string-to-byte-slice/ Convert between byte array/slice and string · YourBasic Go Mar 12, 2019 - CODE EXAMPLE When you convert between a string and a byte slice (array), you get a brand new slice that contains the same bytes as the string, and vice versa. byte array convert slice string yourbasic https://yourbasic.org/golang/max-min-int-uint/ Maximum value of an int · YourBasic Go CODE EXAMPLE The max and min values of an int can be computed as untyped constants. maximum value int yourbasic go https://yourbasic.org/golang/append-explained/ How to append anything (element, slice or string) to a slice · YourBasic Go May 14, 2019 - CODE EXAMPLE The append function appends elements to the end of a slice: if there is enough capacity, the underlying array is reused; if not, a new underlying... append anything element slice string https://yourbasic.org/golang/check-map-contains-key/ 3 ways to find a key in a map · YourBasic Go May 17, 2019 - CODE EXAMPLE To check if a map contains a key, use the second return value. It's a boolean that indicates if the key exists. ways find key map yourbasic https://yourbasic.org/golang/append-to-file/ Append text to a file · YourBasic Go CODE EXAMPLE To open/create a file for writing and appending in Go: os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644) append text file yourbasic go https://yourbasic.org/golang/rune/ Runes and character encoding · YourBasic Go Mar 23, 2019 - A rune is a type meant to represent a Unicode code point. Strings, however, are sequences of bytes (typically containing Unicode text encoded in UTF-8). runes character encoding yourbasic go