Boolean expression is an expression in a programming language that will evaluate to one value based on certain conditions. Boolean expressions use special math and logic symbols known as “operators” to compare numbers or other variables, documents, or states, and then will evaluate to either true or false. Boolean expressions are used in all types of programming, from web development to algorithms and data structures.
There are three integral “operators” in a Boolean expression: AND, OR, and NOT. The AND operator will return true only if all conditions stated are true. The OR operator is a way to determine the truth value of a statement based on the truth state of one or more of its components. The NOT operator is used to invert the truth value of a statement and will return true if the statement is false, and false if the statement is true.
Boolean expressions can also be used to manipulate data. This includes filtering, mapping, and sorting. They can be combined into more complex statements in order to perform more complex filtering. For example, an expression like (x AND y) OR (a AND b) OR (c AND d) would filter a given set of data by only allowing it if a certain combination of conditions were met.
Boolean expressions have numerous uses throughout the world of programming. They are often used in programs and scripts to control how the program executes. They are also useful for parsing natural language queries, so that a computer is able to interpret requests from the user and execute the appropriate commands. Boolean expressions are also used in database queries to filter data on a large scale.