Created
March 5, 2019 21:46
-
-
Save BenFausch/d6344c9d9beec61ab709e8afdeee9890 to your computer and use it in GitHub Desktop.
Simplest implementation of a promise chain
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!doctype html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="description" content=""> | |
<meta name="viewport" content="width=device-width, initial-scale=1"> | |
<title>Promise Chain Example (supported by ALL browsers except IE11)</title> | |
<link rel="author" href="humans.txt"> | |
</head> | |
<body> | |
<h1>CHECK Your console for messages!</h1> | |
<script> | |
function firstFunction() { | |
return new Promise(function(resolve, reject) { | |
setTimeout(function() { | |
console.log('Me First at 3 seconds!') | |
resolve('cars') | |
}, 3000); | |
}); | |
} | |
function secondFunction() { | |
return new Promise(function(resolve, reject) { | |
firstFunction().then(function(response) { | |
setTimeout(function() { | |
console.log('Me Second at 6 seconds! Message from firstFunction: ' + response) | |
resolve(response+ ' are') | |
}, 3000); | |
}) | |
}) | |
} | |
function thirdFunction() { | |
return new Promise(function(resolve, reject) { | |
secondFunction().then(function(response) { | |
setTimeout(function() { | |
console.log('Me Third at 9 seconds! Message from secondFunction: ' + response) | |
resolve(response + ' cash money') | |
}, 3000); | |
}) | |
}) | |
} | |
function execute(){ | |
thirdFunction().then(function(response){ | |
setTimeout(function() { | |
console.log('Me last at 12 seconds! The third function says: ' + response) | |
},3000) | |
}); | |
} | |
execute(); | |
</script> | |
</body> | |
</html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment