I would like to set a variable that will store the return value of functions. The return value can either be a string, number or boolean but I don't have any guarantee which one of them will be returned.
Is it possible to use the variable to store either a number, string or boolean depending on the type that the functions will return without applying any conversions?
For example, first I declare var returnValue = 0. Then a function functionAmay return the string 'passed' and I want to store it in returnValue by writing returnValue = functionA(). Then another function functionBmay return 10 or false and I would like to use returnValue by writing returnValue = functionB(). Can it be done?
Yes you can.
In Javascript, a 'var' can store any type of data as JS is untyped as referred in the comments in the main question.
function fn(type) {
if(type == 'string') return 'passed';
if(type == 'number') return 1;
if(type == 'boolean') return true;
}
let returnedValue;
returnedValue = fn('string');
console.log(returnedValue, typeof returnedValue);
returnedValue = fn('number');
console.log(returnedValue, typeof returnedValue);
returnedValue = fn('boolean');
console.log(returnedValue, typeof returnedValue);Collected from the Internet
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