Case sensitivity is the attribute of a programming language whereby the language recognizes the difference between uppercase and lowercase letters. If a programming language supports case sensitivity, any uppercase and corresponding lowercase letters of an identifier would have different meanings in the code.
For instance, consider the following code example:
var dish = "Pizza";
var Dish = "Cake";
For instance, consider this piece of code:
var apple = "apple";
Var Apple = "Apple";
In the code example above, the use of different cases gives the identifiers a different meaning. In this case, the first identifier "apple" is assigned the value "apple," while the second identifier, "Apple," is assigned the value "Apple." If a developer tries to use the identifier "apple" where "Apple" is required, the program would fail as "apple" and "Apple" are not the same in the code.
var exampleVar = "Sample text";
VAR ExampleVar = "Different sample text";
console.log(exampleVar); //Outputs "Sample text"
console.log(ExampleVar); //Outputs "Different sample text"
In the example above, two specific variables are declared with different casing in their respective names. The first variable name uses camel-case, while the second variable name uses the upper-case format for the first letter of each word. The console output shows that both variables point to different data due to their casing.
var example = "Example text";
console.log(EXAMPLE); //Outputs an error
I'm sorry, but I need you to give me more information on which previous topics you would like me to write about.
A4. Yes, we can, but it is not recommended. The use of the same identifier with different capitalization in different parts of the code can confuse the interpreter and lead to syntax errors.