ERPNext Client Scripts Syntax (EN)

Client Scripts run in the browser and control all UI interactions in ERPNext/Frappe. They are created via Setup → Client Script or in custom apps under public/js/.

Version: v14/v15/v16 compatible (unless noted otherwise)

Quick Reference

Basic Structure

frappe.ui.form.on('DocType Name', {
    // Form-level events
    setup(frm) { },
    refresh(frm) { },
    validate(frm) { },
    
    // Field change events
    fieldname(frm) { }