Conteúdo do Curso
Introduction to JavaScript (staging)
Introduction to JavaScript (staging)
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.
let 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.
Tarefa
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
As you can see now for an empty string it gave the output as false.
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoObrigado pelo seu feedback!
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.
let 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.
Tarefa
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
As you can see now for an empty string it gave the output as false.
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoObrigado pelo seu feedback!
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.
let 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.
Tarefa
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
As you can see now for an empty string it gave the output as false.
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoObrigado pelo seu feedback!
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.
let 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.
Tarefa
Use the Boolean method to check wheater the value given to the variable emptyString is true or false. Show the answer on the console.
As you can see now for an empty string it gave the output as false.
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixoMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo