Basics
Go Loops
Loop Structures
Go loops use for with break and continue for iteration.
Introduction to Go Loops
In Go, loops are a fundamental control structure used for iterating over a sequence of data. Unlike some other languages, Go only has one looping construct, the for
loop. However, it is versatile and can be used in several different ways to achieve various iteration patterns.
Basic For Loop Syntax
The most common form of a for
loop in Go resembles the C-style for
loop. It includes three components: the initialization statement, the condition expression, and the post statement.
Using For as a While Loop
Go's for
loop can also be used as a while loop. This is done by omitting the initialization and post statements, leaving only the condition.
Infinite Loops
An infinite loop in Go can be created using the for
loop without any condition. This is useful for implementing loops that should run indefinitely until an explicit break condition is met.
Breaking Out of Loops
The break
statement in Go is used to terminate the nearest enclosing loop. This is useful when you need to exit a loop based on a certain condition.
Skipping Iterations with Continue
The continue
statement in Go skips the current iteration of the loop and jumps to the next iteration. It's useful when you want to skip certain elements in a loop based on a condition.
Conclusion
Loops are an essential part of programming in Go, allowing you to efficiently process data and control the flow of your programs. By mastering the use of the for
loop along with break
and continue
, you can handle a wide variety of iterative tasks.