Decision making structures require that the programmer specifies one or more conditions to be evaluated or tested by the program, along with a statement or statements to be executed, if the condition is determined to be true, and optionally, other statements to be executed if the condition is determined to be false.
Following is the general form of a typical decision making structure found in most of the programming languages −
Lua programming language assumes any combination of Boolean true and non-nil values as true, and if it is either boolean false or nil, then it is assumed as false value. It is to be noted that in Lua, zero will be considered as true.
Lua programming language provides the following types of decision making statements.
Following is the general form of a typical decision making structure found in most of the programming languages −
Lua programming language assumes any combination of Boolean true and non-nil values as true, and if it is either boolean false or nil, then it is assumed as false value. It is to be noted that in Lua, zero will be considered as true.Lua programming language provides the following types of decision making statements.
| Statement | Description |
|---|---|
| if statement | An if statement consists of a boolean expression followed by one or more statements. |
| if...else statement | An if statement can be followed by an optional else statement, which executes when the boolean expression is false. |
| nested if statements | You can use one if or else if statement inside another if or else if statement(s). |
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