Section: Forms and Validation

Read selected file

javascript
javascript
const file = fileInput.files?.[0];

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Related commands

Same sheet · prioritizing Forms and Validation
Read FormData
OpenIn sheetjavascriptsame section
Handle form submit
OpenIn sheetjavascriptsame section
Read valueAsNumber
OpenIn sheetjavascriptsame section
querySelector
OpenIn sheetjavascript1 tag match
Create element
OpenIn sheetjavascript1 tag match