Created
July 10, 2017 20:00
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| function addJS(id, url) { | |
| if (document.getElementById(id)) { | |
| return; | |
| } | |
| const fjs = document.getElementsByTagName('script')[0]; | |
| const js = document.createElement('script'); | |
| js.id = id; | |
| js.src = url; | |
| fjs.parentNode.insertBefore(js, fjs); | |
| } |
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