Building Blockchain Projects

What are the different data types?

Solidity is a statically typed language; the type of data a variable holds needs to be predefined. By default, all bits of the variables are assigned to 0. In Solidity, variables are function scoped; that is, a variable declared anywhere within a function will be in scope for the entire function regardless of where it is declared.

Now let's look at the various data types provided by Solidity:

• The most simple data type is bool. It can hold either true or false.
• uint8, uint16, uint24 ... uint256 are used to hold unsigned integers of 8 bits, 16 bits, 24 bits ... 256 bits, respectively. Similarly, int8, int16 ... int256 are used to hold signed integers of 8 bits, 16 bits ... 256 bits, respectively. uint and ...