o = console.log(isNaN(c));
if(o === false){
console.log(33);
}
if(o === true){
console.log(39)
}
Is this the correct way to check if something is of a boolean value|??
you can use typeof
var typeCheck = true
console.log(typeof typeCheck);
// expected output: "boolean"
Here is the documentation https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof
Just check the type.
If Javascript would not have this feature, you could convert the value to boolean and check with strict comparison.
value === Boolean(value)
function isBoolean(value) {
return typeof value === 'boolean';
}
console.log(isBoolean(1));
console.log(isBoolean(0));
console.log(isBoolean(true));
console.log(isBoolean(false));