| JavaScript Tutorial » Language Basics » Variables |
| 1. 9. 1. Variables | |
Variables in JavaScript are defined by using the var operator (short for variable), followed by the variable name, such as: | |
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In this example, the variable test is declared and given an initialization value of "hi" (a string). | |
You can also define two or more variables using the same var statement: | |
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Variables using the same var statement don't have to be of the same type: | |
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variables in JavaScript do not require initialization: | |
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| 1. 9. Variables | ||||
| 1. 9. 1. | Variables | |||
| 1. 9. 2. | Variables can hold different types of values at different times | |||
| 1. 9. 3. | Naming Variables | |||
| 1. 9. 4. | Variables don't have to be declared before being used | |||
| 1. 9. 5. | Define variable and assign value | |||
| 1. 9. 6. | Reassigning value to Variables | |||
| 1. 9. 7. | Working With JavaScript Variables | |||
| 1. 9. 8. | Declare two variables in the same line | |||
| 1. 9. 9. | Reference a variable without declaration | |||
| 1. 9. 10. | Assign one variable to another variable | |||
| 1. 9. 11. | Do simple calculation | |||
| 1. 9. 12. | Braces indicate code blocks | |||