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iOS Swift Basics (retired) Types Numbers

vibhor RAMPAL
vibhor RAMPAL
2,365 Points
Posted by vibhor RAMPAL
vibhor RAMPAL
2,365 Points

let price = "9.99" I am trying to run this but getting a compile error

let price = "9.99"

I am trying to run this but getting a compile er

numbers.swift 
let title = ("A Dance with Dragons")

let price = "6.99"
Ryan Jin
Ryan Jin
15,337 Points
Ryan Jin
Ryan Jin
15,337 Points

When you declare the constant "title", you don't need to write its value in a pair of parenthesis. Also, when you are writing doubles, you don't need to add the pair of quotation marks around it, since quotation marks are only for strings and characters, not for numbers. Well, if the question asks you to write the price as a string, the " let price = "6.99" " will work. But the declaration of the title constant can cause a crash. So I believe you just write it out like this:

let title = "A Dance with Dragons"
let price = 6.99 // If the question asks you to write it as a string, keep it as let price = "6.99"

1 Answer

David Magaña
David Magaña
4,170 Points
David Magaña
David Magaña
4,170 Points

Hi, when you declare a String variable, it needs to be quoted, but if the variable is a number (integer, float, double), you only type the number. Should look like this:

let title = "A Dance with Dragons"

let price = 6.99