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document.ready
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Document.Ready?</title> | |
| <script> | |
| HTMLDocument.prototype.ready = function () { | |
| return new Promise(function(resolve, reject) { | |
| if (document.readyState === 'complete') { | |
| resolve(document); | |
| } else { | |
| document.addEventListener('DOMContentLoaded', function() { | |
| resolve(document); | |
| }); | |
| } | |
| }); | |
| } | |
| document.ready().then(() => alert('ready')); | |
| </script> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |
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