Hard code is a term used in computer programming to describe when software developers embed specific values or instructions directly into the source code of an application or system. The spelling of this term can be explained using the International Phonetic Alphabet (IPA) as [härd koʊd]. The "h" in "hard" is aspirated, while the "a" is pronounced with the "ah" sound as in "car." The "o" in "code" is pronounced as the "oh" sound, and the "e" at the end is silent.
Hard code refers to the practice of embedding specific values or instructions directly into the source code of a computer program, as opposed to using more flexible or dynamic methods. It involves directly inputting fixed or constant data into the program's code, which cannot be easily changed without modifying the source code itself.
Typically, hard coding is done when certain values or instructions are believed to remain constant throughout the execution of the program or when immediate changes are not expected. This can include values like file paths, constant variables, or specific calculations, which are directly written into the source code.
However, hard coding is generally considered a less desirable approach as it reduces the flexibility and maintainability of the program. It makes it difficult to modify or update certain aspects of the code without having to edit the actual source code, potentially introducing errors and making the program harder to manage.
The opposite of hard coding is using variables or configuration files that allow for dynamic changes. This approach enables easier modification of the program's behavior or values without the need to alter the source code, resulting in greater flexibility and scalability.
The term "hard code" is derived from two separate words: "hard" and "code".
The word "hard" originated in Old English as "heard" and has roots in Germanic languages. It typically describes something that is firm, solid, difficult, or unyielding.
On the other hand, "code" comes from Latin "codex", meaning a system of laws or rules. In the context of computing, "code" refers to a set of instructions or commands written in a programming language.
When these two words are combined, "hard code" refers to the practice of embedding fixed or rigid values directly into the source code of a computer program, rather than using more flexible means like variables or configuration files. This can make the code difficult to modify or adapt since any changes require directly editing the code itself.