Boolean 3/4
The Boolean() Function:
The Boolean() function, in JavaScript, is used to return or convert a value to its Boolean value i.e., true or false.
Almost any value is evaluated as true if it has some sort of content, for example.
12let name="paul"; console.log(Boolean(name));
As you can see for the above variable, name we get the output as true because it had a string value. An empty string would have given a false output.
Swipe to start coding
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
Ratkaisu
As you can see now for an empty string it gave the output as false.
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Pyyhkäise näyttääksesi valikon
The Boolean() Function:
The Boolean() function, in JavaScript, is used to return or convert a value to its Boolean value i.e., true or false.
Almost any value is evaluated as true if it has some sort of content, for example.
12let name="paul"; console.log(Boolean(name));
As you can see for the above variable, name we get the output as true because it had a string value. An empty string would have given a false output.
Swipe to start coding
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
Ratkaisu
As you can see now for an empty string it gave the output as false.
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Awesome!
Completion rate improved to 2single
