Variable and a constant

[rijulraj456]

What is the difference between a variable and a constant?

[rijulraj456]

A: A variable is a storage location in memory whose value can change during program execution. A constant is a value that cannot be modified once it is defined. For example, in Python, x = 10 is a variable that can later be changed to x = 20, while const PI = 3.14 in languages like JavaScript (using const) cannot be reassigned.

[foxenergy456]

What is an algorithm?

[rijulraj456]

A: An algorithm is a step-by-step procedure or set of rules to solve a problem or perform a task. It’s like a recipe for a program, outlining the logic needed to achieve a specific goal, such as sorting a list or searching for an item.

[foxenergy456]

yes

[rijulraj456]

What is the difference between == and === in JavaScript?

[foxenergy456]

A: == checks for equality with type coercion (e.g., "5" == 5 is true because the string is converted to a number). === checks for strict equality without type coercion (e.g., "5" === 5 is false because the types differ).