javascript - 将布尔结果转换为数字/整数(Convert boolean result into number/integer)

Question

I have a variable that stores false or true , but I need 0 or 1 instead, respectively.(我有一个存储false或true的变量，但我分别需要0或1 。)

How can I do this?(我怎样才能做到这一点？)   ask by hd. translate from so

Answer 1

Use the unary + operator , which converts its operand into a number.(使用一元+运算符 ，它将其操作数转换为数字。)

+ true; // 1 + false; // 0 Note, of course, that you should still sanitise the data on the server side, because a user can send any data to your sever, no matter what the client-side code says.(当然，请注意，您仍应该清理服务器端的数据，因为无论客户端代码说什么，用户都可以向服务器发送任何数据。)