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Introduction to GoLang

Iterating Over ArraysIterating Over Arrays

Arrays can potentially contain a large amount of related data, and sometimes, we want to access and modify data in bulk. An easier way to achieve this is by looping through an array to work with its elements collectively.

We can traverse the entire array using a for loop. The len function provides us with the length of the array, which we can use in the loop condition to specify the number of iterations:

go

index.go

In the code above, we employ a for loop to iterate len(numbers) times, where len(numbers) represents the length of the array. Within the loop, we utilize the variable i for indexing and accessing the elements.

The following code increments all odd numbers and squares all even numbers in an array:

go

index.go

What is the correct way of using a for loop to loop through an array called myArr ?

Select the correct answer

Everything was clear?

Section 5. Chapter 6
course content

Course Content

Introduction to GoLang

1. Getting Started

What is Go Programming Language?Hello WorldComments in GoBasics of VariablesModifying Variable ValuesConstantsBasics of Operators & ExpressionsChallenge: Hello WorldChallenge: Comments in GoChallenge: Basics of VariablesChallenge: Constants

2. Data Types

IntegersFloating-Point NumbersBooleansRunesStringsBasic Type CastingString FormattingChallenge: String Formatting Practice

3. Control Structures

Comparison OperatorsConditional StatementsConditional ChainingLogical OperatorsSwitch StatementFor LoopBreak StatementChallenge: Practicing For Loop

4. Functions

Declaring and Defining FunctionsLocal and Global ScopesPassing Data into the FunctionsReturn Values from FunctionsMultiple Return ValuesPassing Functions as ArgumentsChallenge: Reviewing Concepts of Functions

5. Arrays and Slices

Declaring ArraysAccessing and Modifying Array ElementsSlicesLength vs CapacityMulti-Dimensional ArraysIterating Over ArraysPassing Variable Number of Arguments into FunctionsPassing Arrays into FunctionsChallenge: Finding the Largest Element in a Grid

6. Intro to Structs & Maps

Creating StructsCreating Instances of StructsData in StructsWhat are Maps?Map Declaration and InitializationAccessing Map ValuesDeleting Keys From MapsChallenge: Creating a Structure

Introduction to GoLang

Iterating Over ArraysIterating Over Arrays

Arrays can potentially contain a large amount of related data, and sometimes, we want to access and modify data in bulk. An easier way to achieve this is by looping through an array to work with its elements collectively.

We can traverse the entire array using a for loop. The len function provides us with the length of the array, which we can use in the loop condition to specify the number of iterations:

go

index.go

In the code above, we employ a for loop to iterate len(numbers) times, where len(numbers) represents the length of the array. Within the loop, we utilize the variable i for indexing and accessing the elements.

The following code increments all odd numbers and squares all even numbers in an array:

go

index.go

What is the correct way of using a for loop to loop through an array called myArr ?

Select the correct answer

Everything was clear?

Section 5. Chapter 6
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