Last active
December 20, 2022 09:53
-
-
Save wojtekmaj/c6e4a0f359f0083f22532057169253ed to your computer and use it in GitHub Desktop.
Transform HTML table into JSON data.
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
/** | |
* Transforms HTML table into JSON data. | |
* | |
* Sample input: | |
* | |
* <table> | |
* <thead> | |
* <tr> | |
* <th>Heading 1</th> | |
* <th>Heading 2</th> | |
* </tr> | |
* </thead> | |
* <tbody> | |
* <tr> | |
* <td>Value 1a</td> | |
* <td>Value 2a</td> | |
* </tr> | |
* <tr> | |
* <td>Value 1b</td> | |
* <td>Value 2b</td> | |
* </tr> | |
* </tbody> | |
* </table> | |
* | |
* Sample output: | |
* | |
* [ | |
* { 'Heading 1': 'Value 1a', 'Heading 2': 'Value 2a' }, | |
* { 'Heading 1': 'Value 1b', 'Heading 2': 'Value 2b' } | |
* ] | |
* | |
* @param {HTMLTableElement} table | |
*/ | |
function tableToJSON(table) { | |
const headers = Array.from(table.querySelectorAll('thead tr th')).map(el => el.textContent.trim()); | |
const result = []; | |
const rows = Array.from(table.querySelectorAll('tbody tr')); | |
rows.forEach(row => { | |
const cells = Array.from(row.querySelectorAll('td')).map(el => el.textContent.trim()); | |
result.push(headers.reduce((rowRes, header, headerIndex) => { | |
return { | |
...rowRes, | |
[header]: cells[headerIndex] | |
}; | |
}, {})); | |
}); | |
return result; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment