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iOS

Posted by Mark Cranston
Mark Cranston
1,817 Points

Cannot assign immutable value to type 'Bool'

I want to run a function when a variable is true, I get the error "Cannot assign immutable value to type 'Bool'", why is this happening and what can I do to fix it?

var variable = true

while variable = true{
function()
}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

The single equals sign assigns a value to a variable. So, dayOfWeek = "Sunday" or singaporeGPWinner = "Vettel" etc.

To compare two things you can use the double-equals - == - that checks for equality rather than making one thing equal the other.

Your question lacks a language so I can't give you an example, but I hope this points you in the right direction. Please shout if I can help some more.

Steve.