Swift Float
In this tutorial, we will learn more about Swift float datatype like initialization, manipulation, printing etc.
Swift Float is used to store single-precision, floating-point value type.
Float Declaration
To declare a variable to store float datatype, use the following syntax.
var variableName :Float
Float Initialization
To initialize the variable, you can provide the value while declaring the variable.
var pi :Float = 3.14159
Print Float to Console
To print the float variable to console, use print() method.
main.swift
var pi :Float = 3.14159
print(pi)
Output
3.14159
Float Initialization using Float.init()
Swift 4 uses type inference. What does that mean? It means that if you initialize a variable with float value during declaration, you can skip telling the compiler that the variable is of Float type. Based on the value you assign to the variable, compiler deduces the datatype.
main.swift
var pi = Float(3.14159)
print(pi)
print(type(of:pi))
Output
3.14159
Float
Conclusion
In this Swift Tutorial, we have learned about Float datatype and how to use it Swift programming.