Reference for Processing version 1.0+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
| Name | ! (logical NOT) |
||
|---|---|---|---|
| Examples | ![]() boolean a = false;
if (!a) {
rect(30, 20, 50, 50);
}
a = true;
if (a) {
line(20, 10, 90, 80);
line(20, 80, 90, 10);
} |
||
| Description | Inverts the Boolean value of an expression. Returns true if the expression is false and returns false if the expression is true. If the expression (a>b) evaluates to true, then !(a>b) evaluates to false. | ||
| Syntax | !expression |
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| Parameters |
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| Usage | Web & Application | ||
| Related | || (logical OR) && (logical AND) if() |


