# And, Or, and Not functions in Power Apps

Boolean logic functions, commonly used to manipulate the results of comparisons and tests.

## Description

The **And** function returns **true** if all of its arguments are **true**.

The **Or** function returns **true** if any of its arguments are **true**.

The **Not** function returns **true** if its argument is **false**; it returns **false** if its argument is **true**.

These functions work the same way as they do in Excel. You can also use operators to perform these same operations, using either Visual Basic or JavaScript syntax:

Function notation | Visual Basic operator notation | JavaScript operator notation |
---|---|---|

And( x, y ) |
x And y |
x && y |

Or( x, y ) |
x Or y |
x || y |

Not( x ) |
Not x |
! x |

These functions work with logical values. You can't pass them a number or a string directly; instead, you must make a comparison or a test. For example, this logical formula **x > 1** evaluates to the Boolean value **true** if **x** is greater than **1**. If **x** is less than **1**, the formula evaluates to **false**.

## Syntax

**And**( *LogicalFormula1*, *LogicalFormula2* [, *LogicalFormula3*, ... ] )

**Or**( *LogicalFormula1*, *LogicalFormula2* [, *LogicalFormula3*, ... ] )

**Not**( *LogicalFormula* )

*LogicalFormula(s)*- Required. Logical formulas to evaluate and operate on.

## Examples

The examples in this section use these global variables:

**a**=*false***b**=*true***x**= 10**y**= 100**s**= "Hello World"

To create these global variables in an app, insert a **Button** control, and set its **OnSelect** property to this formula:

```
Set( a, false ); Set( b, true ); Set( x, 10 ); Set( y, 100 ); Set( s, "Hello World" )
```

Select the button (by clicking it while you hold down the Alt key), and then set the **Text** property of a **Label** control to a formula in the first column of the next table.

Formula | Description | Result |
---|---|---|

And( a, b ) |
Tests the values of a and b. One of the arguments is false, so the function returns false. |
false |

a And b |
Same as the previous example, using Visual Basic notation. | false |

a && b |
Same as the previous example, using JavaScript notation. | false |

Or( a, b ) |
Tests the values of a and b. One of the arguments is true, so the function returns true. |
true |

a Or b |
Same as the previous example, using Visual Basic notation. | true |

a || b |
Same as the previous example, using JavaScript notation. | true |

Not( a ) |
Tests the value of a. The argument is false, so the function returns the opposite result. |
true |

Not a |
Same as the previous example, using Visual Basic notation. | true |

! a |
Same as the previous example, using JavaScript notation. | true |

Len( s ) < 20 And Not IsBlank( s ) |
Tests whether the length of s is less than 20 and whether it isn't a blank value. The length is less than 20, and the value isn't blank. Therefore, the result is true. |
true |

Or( Len( s ) < 10, x < 100, y < 100 ) |
Tests whether the length of s is less than 10, whether x is less than 100, and whether y is less than 100. The first and third arguments are false, but the second one is true. Therefore, the function returns true. |
true |

Not IsBlank( s ) |
Tests whether s is blank, which returns false. Not returns the opposite of this result, which is true. |
true |

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