Solidity Programming Essentials

Solidity expressions

An expression refers to a statement (comprising multiple operands and optionally zero or more operators) that results in a single value, object, or function. The operand can be a literal, variable, function invocation, or another expression itself.

An example of an expression is as follows:

Age > 10

In the preceding code, Age is a variable and 10 is an integer literal. Age and 10 are operands and the (>) greater than symbol is the operator. This expression returns a single boolean value (true or false) depending on the value stored in Age.

Expressions can be more complex comprising multiple operands and operators, as follows:

((Age > 10) && (Age < 20) ) || ((Age > 40) && (Age < 50) )

In the preceding code, there are multiple ...