73nko
2/28/2018 - 7:29 AM

Bind a regex to a function

The point to take here is that if the function you want to call point-free makes use of this, you should be very aware that it is set to what you expect.

regex-bind
content_copyfile_download
// Fix A - closure
const isActivationCodeClosure = code => /^\d{4}-\d{4}-\d{4}$/.test(code);

// Fix B - binding
const regex = /^\d{4}-\d{4}-\d{4}$/;
const isActivationCodePointFree = regex.test.bind(regex);

// logs true
console.log(isActivationCodeClosure("1234-5678-1234"));
// logs true
console.log(isActivationCodePointFree("1234-5678-1234"));