tekststreng

Tekststreng is a sequence of characters used to represent textual data in computing. In programming and data processing, it is commonly referred to as a string. A tekststreng can include letters, digits, whitespace and punctuation, and is used to store words, sentences and identifiers.

Text strings are stored and manipulated according to a chosen character encoding, most commonly Unicode-based encodings such as UTF-8, UTF-16, or UTF-32. In memory, a tekststreng may be represented as a sequence of bytes or code units. In languages that use C-style strings, a terminator character (for example, null) may indicate the end of the string.

Many languages treat strings as immutable values (Python, Java, JavaScript), meaning that operations typically create new strings rather than modifying existing ones. Other languages provide mutable string types (C++, Ruby, Go).

Common operations include measuring length, concatenation, indexing and slicing, searching, replacement and formatting. Examples: Python: "hello". Java: String class. JavaScript: "text". C: char* with functions in string.h.

Strings are central to user interfaces, data serialization formats, natural language processing, and configuration. Key considerations include encoding compatibility, normalization of Unicode, locale-aware operations, and performance implications for long strings.