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Introduction to GoLang

Deleting Keys From MapsDeleting Keys From Maps

We can also remove key-value pairs from maps using the delete() function.

Here are some points to note regarding the delete() function:

  • The delete function does not return any value;
  • If the key keyName doesn't exist, it simply does nothing;
  • If the map mapName doesn't exist, it shows an error during compilation.

Here is an example of the delete() function being used in a program:

go

index.go

question-icon

Considering the map code below, which of the expressions will execute without compilation errors:

Select a few correct answers

Everything was clear?

Section 6. Chapter 7
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

Deleting Keys From MapsDeleting Keys From Maps

We can also remove key-value pairs from maps using the delete() function.

Here are some points to note regarding the delete() function:

  • The delete function does not return any value;
  • If the key keyName doesn't exist, it simply does nothing;
  • If the map mapName doesn't exist, it shows an error during compilation.

Here is an example of the delete() function being used in a program:

go

index.go

question-icon

Considering the map code below, which of the expressions will execute without compilation errors:

Select a few correct answers

Everything was clear?

Section 6. Chapter 7
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