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