The vertical bar symbol, represented as “|”, is commonly used in programming languages to indicate a logical OR operation. This operator evaluates two conditions and returns true if at least one of them is true. In smart contracts and decentralized applications, the vertical bar can be utilized to create complex conditional statements. For instance, if a transaction meets one condition or another, the outcome changes accordingly. This flexibility allows developers to write more efficient code and handle multiple scenarios seamlessly.In specific contexts, the vertical bar can also denote the bitwise OR operation, which performs the OR function on individual bits of integers. This is particularly useful in scenarios involving data manipulation, such as setting flags or combining permissions.Overall, the use of the vertical bar as a logical OR operator enhances decision-making capabilities in code, making it vital for programming logic in decentralized systems.