Live Demo•React + TypeScript
Date Input Formatter
A smart date input utility that auto-formats user input to MM/DD/YYYY format, with intelligent cursor positioning that feels natural.
⚡Try it out
Type any numbers — slashes insert automatically
✨Features
🎯
Smart Cursor
Maintains natural cursor position even after auto-formatting
🔢
Numbers Only
Filters out non-numeric input automatically
📅
Auto Slashes
Inserts "/" at the right positions as you type
</>Source Code
date-input-formatter.ts
// Usage: Simply attach to any input
<input
type="text"
placeholder="MM/DD/YYYY"
onInput={reformatDatePickerInput}
/>🧠How It Works
1
Capture Input
On every input event, we grab the current value and cursor position.
2
Count Numerics
We count how many numeric characters exist before the cursor to preserve relative position.
3
Format String
Strip non-numeric chars, limit to 8 digits, and insert slashes at positions 2 and 5.
4
Restore Cursor
Calculate new cursor position based on numeric count, accounting for inserted slashes.