Created
November 19, 2020 20:57
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How promises works
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| function asyncFunction(x) { | |
| return new Promise(function (resolve, reject) { | |
| if(typeof x === 'number' && !isNaN(x)){ | |
| resolve( x * x) | |
| } else { | |
| reject(new Error('It\'s not a number')) | |
| } | |
| }) | |
| } | |
| asyncFunction(10) | |
| .then((result)=> console.log(result)) | |
| .catch((error)=> console.error(error)) |
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