Go For Loops

Unlike other languages, Go has one looping construct — the for loop. However, the for loop can handle all of your looping needs. I will show you examples of how to use the for loop to count from 1 to 10 and how to loop over an array/slice in different ways.

Count From 1 to 10 Using The Standard For Loop

In this example, we use the standard for loop that is available in most programming languages. This code loops from 1 to 10 and prints out the values from 1 to 10.

This will print the following:

12345678910

Count From 1 to 10 Using For Loop Like A While Loop

This will print the following:

12345678910

Looping Over An Slice Or an Array

In this example, we create a slice with 10 items. This code loops over the slice and prints the value at the index.

This will print the following:

90108020803070406050

Looping Over a Slice or an Array Using Range

In this example, the code loops through all the elements in an array or slice and prints out their value.

This will print the following:

90108020803070406050

Looping Over a Slice or Array Using Range With Index

In this example, the code loops through all the elements in the array or slice like in the example above. However, the code prints both the index of the element and the element value.

This will print the following:

index: 0 value: 90index: 1 value: 10index: 2 value: 80index: 3 value: 20index: 4 value: 80index: 5 value: 30index: 6 value: 70index: 7 value: 40index: 8 value: 60index: 9 value: 50

Conclusion

So those are just a few examples of how to use a for loop to count from 1 to 10 and loop for an slice or array.

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