The latest ECMAScript(ES6) standard defines seven data types: Out of which six data types are Primitive(predefined). Numbers: 5, 6.5, 7 etc. String: “Hello GeeksforGeeks” etc. Boolean: Represent a logical entity and can have two values: true or false.
Which is a good example of a variable name?
The following are examples of valid variable names: age, gender, x25, age_of_hh_head.
What are 3 types of variables?
These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.
How do you define variables?
A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.
|String||represents sequence of characters e.g. “hello”|
|Number||represents numeric values e.g. 100|
|Boolean||represents boolean value either false or true|
|Undefined||represents undefined value|