Created
December 28, 2016 12:17
-
-
Save andreasvirkus/25c612aac704ec00ac75c5fa3f14f4a6 to your computer and use it in GitHub Desktop.
This file contains hidden or 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
| // ES5 | |
| function getNodeindex( elm ){ | |
| var c = elm.parentNode.children, i = 0; | |
| for(; i < c.length; i++ ) | |
| if( c[i] == elm ) return i; | |
| } | |
| // ES6 | |
| function getNodeindex( elm ){ | |
| return [...elm.parentNode.children].findIndex(c => c == elm) | |
| // or | |
| return [...elm.parentNode.children].indexOf(elm) | |
| } | |
| // Usage with the following HTML | |
| // <body> | |
| // <nav></nav> | |
| // <header></header> | |
| // <footer></footer> | |
| // </body> | |
| let el = document.getElementById('header'); | |
| getNodeindex(el); // 1 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment