Hello everyone! Please help me, how to convert a string

Question

Hello everyone! Please help me, how to convert a string

to a number at the return?

Near the prompt, I can't put "+" because after that 0 is showing as an empty string. The task is: Force the user to enter a number from the keyboard (not a string and not NaN).

function getNumber() {

let num;
do {
num = prompt("Enter number", '');
} while (!isFinite(num) || num === "");
if (num === null || num === "") return null;
console.log("Number! Yes!");
return +num;
;

}
getNumber();

0

01.02.2022

3 ответов

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Anna Anna Автор вопроса

Thank you! But in anyway it's a string 😬😬😬🥺 When I do hover on the num it's showing a string😕

0

01.02.2022

Edwing123

Anna Anna

Thank you! But in anyway it's a string 😬😬😬🥺 When I...

You can also learn about the function Number, Google it and see how it works

0

01.02.2022

Edwing123 · Accepted Answer

Edwing123

Anna Anna

Thank you! But in anyway it's a string 😬😬😬🥺 When I...

parseInt tries to convert the provided argument to an string, indeed the variable num is of type string, but what you have to look after is the returned value of the function getNumber

0

01.02.2022

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Hello everyone! Please help me, how to convert a string

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