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 operators in play. The && operator acts as an AND operator between two expressions, which in turn comprises operands and operators. There is also an OR operator represented by the || operator between two complex...
