TheDeveloperBlog.com
C-Sharp | Java | Python | Swift | GO | WPF | Ruby | Scala | F# | JavaScript | SQL | PHP | Angular | HTML
Golang Convert String to Rune Slice (append)
Convert a string into a rune slice and then call append to add a rune to it.String, rune slice. In Golang we often use strings to store character data. But rune slices have many advantages—they treat characters in a more consistent way.Strings
For Unicode characters, a rune slice can be used to append and modify characters with no errors. If we act on a string directly, we can cause problems here.
Modify runes. A string contains runes (these are characters). We can convert a string to a slice of runes. Then we can modify runes or add new ones.
And: We create a new string from the modified rune slice. This is character-based string manipulation in Go.
Golang program that modifies runes from string
package main
import "fmt"
func main() {
original := "cat"
fmt.Println(original)
// Get rune slice.
// ... Modify the slice's data.
r := []rune(original)
r[0] = 'm';
r = append(r, 'e')
// Create new string from modified slice.
result := string(r)
fmt.Println(result)
}
Output
cat
mate
Substrings, notes. Rune slices are also ideal for acquiring substrings from a string. This supports Unicode characters with no risk of data corruption.Substring
A summary. Converting a string to a rune slice in Golang is a common operation. It leads to code that will be less likely to corrupt Unicode characters.
© TheDeveloperBlog.com
The Dev Codes
Related Links:
- Golang strconv, Convert Int to String
- Golang Odd and Even Numbers
- Golang Recover Built In: Handle Errors, Panics
- Learn Go Language Tutorial
- Golang html template Example
- Golang http.Get Examples: Download Web Pages
- Golang container list Example (Linked List)
- Golang base64 Encoding Example: EncodeToString
- Golang os exec Examples: Command Start and Run
- Golang String Between, Before and After
- Golang os.Remove: Delete All Files in Directory
- Golang First Words in String
- Golang flag Examples
- Golang Regexp Find Examples: FindAllString
- Golang Regexp Examples: MatchString, MustCompile
- Golang Index, LastIndex: strings Funcs
- Golang Compress GZIP Examples
- Golang Interface Example
- Golang 2D Slices and Arrays
- Golang Sscan, Sscanf Examples (fmt)
- Top 41 Go Programming (Golang) Interview Questions (2021)
- Golang Padding String Example (Right or Left Align)
- Golang Equal String, EqualFold (If Strings Are the Same)
- Golang map Examples
- Golang Map With String Slice Values
- Golang Array Examples
- Golang Remove Duplicates From Slice
- Golang If, Else Statements
- Golang ParseInt Examples: Convert String to Int
- Golang Strings
- Golang strings.Map func
- Golang bufio.ScanBytes, NewScanner (Read Bytes in File)
- Golang Built In Functions
- Golang bytes.Buffer Examples (WriteString, Fprintf)
- Golang Bytes: Slices and Methods
- Golang Caesar Cipher Method
- Golang Chan: Channels, Make Examples
- Golang Math Module: math.Abs, Pow
- Golang Reverse String
- Golang Struct Examples: Types and Pointers
- Golang path and filepath Examples (Base, Dir)
- Golang Substring Examples (Rune Slices)
- Golang Suffixarray Examples: New, Lookup Benchmark
- Golang switch Examples
- Golang Convert Map to Slice
- Golang Convert Slice to String: int, string Slices
- Golang Const, Var Examples: Iota
- Golang ROT13 Method
- Golang strings.Contains and ContainsAny
- Golang rand, crypto: Random Number Generators
- Golang String Literal Examples (Repeat Method)
- Golang ToLower, ToUpper String Examples
- Golang Trim, TrimSpace and TrimFunc Examples
- Golang Join Examples (strings.Join)
- Golang Len (String Length)
- Golang Convert String to Rune Slice (append)
- Golang JSON Example: Marshal, Unmarshal
- Golang Replace String Examples: Replacer, NewReplacer
- Golang nil (Cannot Use nil as Type)
- Golang Slice Examples
- Golang ListenAndServe Examples (HandleFunc)
- Golang Fibonacci Sequence Example
- Golang Time: Now, Parse and Duration
- Golang bits, OnesCount (Get Bitcount From Int)
- Golang Fprint, Fprintf and Fprintln Examples (fmt)
- Golang Func Examples
- Golang csv Examples
- Golang Fields and FieldsFunc
- Golang unicode.IsSpace (If Char Is Whitespace)
- Golang fmt.Println Examples
- Golang for Loop Examples: Foreach and While
- Golang ioutil.WriteFile, os.Create (Write File to Disk)
- Golang File Handling
- Golang range: Slice, String and Map
- Golang Readdir Example (Get All Files in Directory)
- Golang Sort Slice: Len, Less, Swap in Interface
- Golang Get Lines in File (String Slice)
- Golang Split Examples (SplitAfter, SplitN)