What are loops in Lua?

Lua loop is statements that allow the user to execute a specific statement or a group of statements a multiple times. All the programming languages provide control structures that allow complicated execution paths.

What are loops used for in Lua R?

Loops are used in programming to repeat a specific block of code. In this article, you will learn to create a for loop in R programming. A for loop is used to iterate over a vector in R programming.

How do I concatenate strings in Lua?

The most straightforward way to concatenate (or combine) strings in Lua is to use the dedicated string concatenation operator, which is two periods ( .. ). message = “Hello, ” .. “world!” — message equals “Hello, World!” Numbers are coerced to strings. For fine-grained control over number formatting, use string.

How do you end a loop in Lua?

In Lua, break statement enables us to come out of the inner block of a code. Break statement is used to end the loop. The break statement breaks the for, while, or repeat loop which includes the break statement. After the break loop, the code runs after the break statement and the broken loop.

How do I apply a loop in R?

R For Loop

1. For Loops. A for loop is used for iterating over a sequence: Example.
2. Break. With the break statement, we can stop the loop before it has looped through all the items: Example.
3. Next. With the next statement, we can skip an iteration without terminating the loop: Example.
4. Yahtzee! If .. Else Combined with a For Loop.

What does == mean in Lua?

The operator == tests for equality; the operator ~= is the negation of equality. We can apply both operators to any two values. If the values have different types, Lua considers them different values. Otherwise, Lua compares them according to their types. Other types can be compared only for equality (and inequality).

What does three dots mean in Lua?

The three dots ( ) in the parameter list indicate that the function has a variable number of arguments. When this function is called, all its arguments are collected in a single table, which the function accesses as a hidden parameter named arg .

What does 2 dots mean in Lua?

Lua denotes the string concatenation operator by ” .. ” (two dots). If any of its operands is a number, Lua converts that number to a string.

What is while loop in Lua?

Lua – while Loop. A while loop statement in Lua programming language repeatedly executes a target statement as long as a given condition is true. Syntax. Here, statement(s) may be a single statement or a block of statements. The condition may be any expression, and true is any non-zero value. The loop iterates while the condition is true.

What is a nil value in Lua?

Nil Values. By definition, nil is a state of non-existence or nothingness. In Lua, nil is a non-initialized value, and is a special value used to represent nothing. It represents the absense of a useful value.

What is a table in Lua?

A Lua table is a group of key<=>value pairs. Think hashes in Perl and Ruby or Dictionaries in Python. But Lua is built from the ground up to be fast and efficient with its tables. Lookup is quick. So unlike Perl, Python and Ruby, with Lua it’s efficient to use a table as an array.

What is Lua in Java?

Lua is a powerful, fast, lightweight, embeddable scripting language. JavaScript is a scripting language for computers. It is often run in web browser applications to create dynamic content like message boxes popping up or a live clock. It is not related to, and different from, the programming language Java.