Kursusindhold
Introduction to JavaScript (staging)
Introduction to JavaScript (staging)
2. JavaScript syntax
JavaScript SyntaxJavaScript VariablesJavaScript OperatorsIdentifiers in JavaScriptNaming IdentifiersReserved keywords in JavaScriptNaming Convention in JavaScript. Case StylesVariables Naming ConventionBoolean Naming ConventionConstant Naming ConventionFunction & Classes Naming ConventionMultiline StringsMultiline Strings. ConcatenatingCommenting in JavaScriptCommenting in JavaScript. Multi-line Comments
3. Data Types and Variables
What are Variables?What are Data-types?JavaScript and Type ConversionVar 1/3Var 2/3Var 3/3Let 1/2Let 2/2Constant 1/3Constant 2/3Constant 3/3Number 1/3Number 2/3Number 3/3Boolean 1/4Boolean 2/4Boolean 3/4Boolean 4/4Strings 1/5Strings 2/5Strings 3/5Strings 4/5Strings 5/5BigInt 1/3BigInt 2/3BigInt 3/3Symbols 1/3Symbols 2/3Symbols 3/3NullUndefinedNull vs Undefined
Constant Naming Convention
Constant naming convention
Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).
// UPPERCASE const SECONDS = 60; const MINUTES = 60; const HOURS = 24; const DAY = SECONDS * MINUTES * HOURS; console.log(DAY);
Opgave
Swipe to start coding
Store the value of pi in the constant and name it with an uppercase and show it on the console.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederVar alt klart?
Tak for dine kommentarer!
Sektion 2. Kapitel 10
Constant Naming Convention
Constant naming convention
Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).
// UPPERCASE const SECONDS = 60; const MINUTES = 60; const HOURS = 24; const DAY = SECONDS * MINUTES * HOURS; console.log(DAY);
Opgave
Swipe to start coding
Store the value of pi in the constant and name it with an uppercase and show it on the console.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederVar alt klart?
Tak for dine kommentarer!
Sektion 2. Kapitel 10
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder