Naming Identifiers

Good practices for naming identifier

Though you can name identifiers in any way you want, it’s a good practice to give a descriptive identifier name.
Names should be logical.
If you are using an identifier for a variable to store the number of students, it is better to use students, numberOfStudents, or number_of_students rather than x or n.


              1234567891011
            
//valid but not preferable
let n = 10;
console.log(n);

// clear and descriptive name
let numberOfStudents = 10;
console.log(numberOfStudents);

//clear and descriptive name
let number_of_students = 10;
console.log(number_of_students);

In both cases, the output is the same but the second and the third identifiers are more meaningful.

Aufgabe

Swipe to start coding

Declare a variable, using the const keyword, with the identifier numberOfEmployees and assign the value 50 to that variable and print the value of the variable on the console using the console.log() function.

Lösung

Summary

Identifiers are names for the variables, arrays, functions, objects, and classes.
The identifier should follow the above rule.
Identifiers should have descriptive names.

Wechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden

War alles klar?

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Abschnitt 2. Kapitel 5

Naming Identifiers

Good practices for naming identifier

Though you can name identifiers in any way you want, it’s a good practice to give a descriptive identifier name.
Names should be logical.
If you are using an identifier for a variable to store the number of students, it is better to use students, numberOfStudents, or number_of_students rather than x or n.


              1234567891011
            
//valid but not preferable
let n = 10;
console.log(n);

// clear and descriptive name
let numberOfStudents = 10;
console.log(numberOfStudents);

//clear and descriptive name
let number_of_students = 10;
console.log(number_of_students);

In both cases, the output is the same but the second and the third identifiers are more meaningful.

Aufgabe

Swipe to start coding

Lösung

Summary

Identifiers are names for the variables, arrays, functions, objects, and classes.
The identifier should follow the above rule.
Identifiers should have descriptive names.

Wechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden

War alles klar?

Danke für Ihr Feedback!

Abschnitt 2. Kapitel 5

Wechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden