PowerApps - Block numbers from text input alphabet only

This video shows how to stop people entering numbers into a textinput in PowerApps.

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Documentation
https://learn.microsoft.com/en-us/power-platform/power-fx/reference/function-ismatch

Code Used:
If(IsMatch(TextInput1.Text, "[a-zA-Z\s]+"),
//True
Notify( "Test is ok", NotificationType.Success, 5000)
,
//False
Notify( "Please remove all numbers", NotificationType.Error, 5000)
)