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npx babel src.js --out-file output.js

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npx babel --version
npm run babel --version
yarn babel --version
yarn run babel --version

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{
   "presets":["@babel/env"]
}

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{
  "presets": ["env"] 
}

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new Promise(function (resolve, reject) {
    setTimeout(() => {
        try{
            noSuchAFunction(); // not defined
        } catch(error) {
            reject(error);
        }
    }, 1000);
}).catch(e => console.log('Something went wrong!'));

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new Promise(function(resolve, reject) {   
  setTimeout(() => {     
    reject(new Error("Whoops!")); (*)
  }, 1000); 
}).catch(alert);

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new Promise(function(resolve, reject) {   
  setTimeout(() => {     
    throw new Error("Whoops!");   
  }, 1000); 
}).catch(alert);

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promise.then(f, f) // 1.Yöntem
promise.finally(f) // 2.Yöntem

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promise.then(null, errorHandlingFunction) // 1. Yöntem
promise.catch(errorHandlingFunction) // 2. Yöntem

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let promise = new Promise(resolve => {
  setTimeout(() => resolve("done!"), 1000); 
});  

promise.then(consolo.log); // (1)
promise.then(consolo.log()); // (2)
promise.then((data) => consolo.log(data)); // (3)