Introduction to Lua Functions List

Introduction to Lua Functions List

Lua Functions List

We will explore lua functions list, hoping that it will help the learners. Lua is a lightweight programming language that is often used as an embedded language. It is a dynamically typed language, which means that the type of a variable is not checked at compile time. This makes Lua very flexible and easy to use.

One of the powerful features of Lua is its functions. Functions are blocks of code that can be reused. This makes it possible to write more concise and maintainable code.

Lua has a rich set of functions, covering a wide range of tasks. In this blog post, we will list some of the most common Lua functions.

Basic Functions

The following are some of the most basic Lua functions:

  • print(): Prints a value to the standard output.

  • input(): Reads a value from the standard input.

  • type(): Returns the type of a value.

  • tostring(): Converts a value to a string.

  • tonumber(): Converts a string to a number.

  • assert(): Throws an error if a condition is not met.

Coroutine Functions

Lua supports coroutines, which are lightweight threads. Coroutine functions are used to execute code concurrently.

The following are some of the most common coroutine functions:

  • coroutine.create(): Creates a new coroutine.

  • coroutine.resume(): Resumes a suspended coroutine.

  • coroutine.yield(): Suspends the current coroutine.

  • coroutine.status(): Returns the status of a coroutine.

  • coroutine.running(): Returns the currently running coroutine.

String Functions

Lua has a rich set of string functions. These functions can be used to manipulate strings, such as finding, replacing, and formatting strings.

The following are some of the most common string functions:

  • string.find(): Finds a substring in a string.

  • string.sub(): Extracts a substring from a string.

  • string.gsub(): Replaces all occurrences of a substring in a string.

  • string.format(): Formats a string according to a format specifier.

  • string.len(): Returns the length of a string.

Table Functions

Lua tables are a powerful data structure that can be used to store data of any type. Table functions are used to manipulate tables, such as creating, inserting, and deleting elements from tables.

The following are some of the most common table functions:

  • table.insert(): Inserts an element into a table.

  • table.remove(): Removes an element from a table.

  • table.sort(): Sorts the elements of a table.

  • table.concat(): Concatenates the elements of a table into a string.

  • table.len(): Returns the number of elements in a table.

Mathematical Functions

Lua has a set of mathematical functions that can be used to perform mathematical operations.

The following are some of the most common mathematical functions:

  • math.sin(): Returns the sine of a number.

  • math.cos(): Returns the cosine of a number.

  • math.tan(): Returns the tangent of a number.

  • math.exp(): Returns the exponential of a number.

  • math.log(): Returns the logarithm of a number.

Input/Output Functions

Lua has a set of functions that can be used to read and write data from files.

The following are some of the most common input/output functions:

  • io.open(): Opens a file.

  • io.read(): Reads data from a file.

  • io.write(): Writes data to a file.

  • io.close(): Closes a file.

  • io.flush(): Flushes the output buffer.

Error Handling Functions

Lua has a set of functions that can be used to handle errors.

The following are some of the most common error handling functions:

  • error(): Throws an error.

  • pcall(): Calls a function and catches any errors.

  • xpcall(): Calls a function and catches any errors, but also prints the stack trace.

Other Functions

Lua has many other functions that are not covered in this blog post. For a complete list of Lua functions, please refer to the Lua documentation.

Conclusion

This blog post has listed some of the most common Lua functions. These functions can be used to perform a variety of tasks, such as printing, reading, writing, and manipulating data.

To learn more about Lua functions list, please refer to the Lua documentation.

I hope this blog post has been helpful. If you have any questions, please leave a comment below.

Thank you for reading!