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gh-vuer-ai-vuer-skill-marke…/docs/form-inputs/number-inputs.md
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# Number Inputs Documentation
## Overview
A comprehensive collection of numeric input components with drag-to-modify functionality, specialized inputs for measurements, angles, and multi-dimensional data types.
## Basic Number Input (InputRoot)
The fundamental numeric input uses InputRoot with `etype="number"`. Mouse dragging is not supported.
```jsx
const [value, setValue] = useState(42.5);
<InputRoot
size="sm"
type="number"
value={value}
onChange={(e) => setValue(e.target.value)}
placeholder="Enter a number"
/>
```
## InputNumbers (Single)
Advanced numeric input component with drag-to-modify functionality and enhanced UX.
```jsx
const [value, setValue] = useState([42.5]);
<InputNumbers
size="sm"
value={value}
onValuesChange={setValue}
step={0.1}
/>
```
### Props
| Prop | Type | Default | Description |
|------|------|---------|-------------|
| `value` | `number[]` | — | Array of numbers for each input |
| `onValuesChange` | `(value: number[]) => void` | — | Callback when values change |
| `step` | `number` | `0.1` | Step size for drag modifications |
| `size` | `'sm' \| 'md' \| 'lg'` | `'md'` | Input size variant |
| `side` | `'left' \| 'center' \| 'right'` | `'left'` | Text alignment |
| `prefix` | `ReactNode[]` | — | Array of prefix labels/units for each input |
| `suffix` | `ReactNode[]` | — | Array of suffix labels/units for each input |
### Types
```typescript
interface InputNumbersProps extends Pick<InputRootProps, "size" | "side"> {
step?: number;
value: number[];
prefix?: ReactNode[];
suffix?: ReactNode[];
onValuesChange?: (value: Array<number>) => void;
}
```
## Text Alignment Options
InputNumbers supports three text alignment variants:
**Left aligned (default)**
```jsx
const [leftValue, setLeftValue] = useState([123.45]);
<InputNumbers
size="sm"
value={leftValue}
onValuesChange={setLeftValue}
side="left"
/>
```
**Center aligned**
```jsx
const [centerValue, setCenterValue] = useState([123.45]);
<InputNumbers
size="sm"
value={centerValue}
onValuesChange={setCenterValue}
side="center"
/>
```
**Right aligned**
```jsx
const [rightValue, setRightValue] = useState([123.45]);
<InputNumbers
size="sm"
value={rightValue}
onValuesChange={setRightValue}
side="right"
/>
```
## Prefix and Suffix Usage
Add context to inputs with prefixes or suffixes:
**With prefix ($)**
```jsx
const [price, setPrice] = useState([299.99]);
<InputNumbers
size="sm"
value={price}
onValuesChange={setPrice}
prefix={["$"]}
step={0.01}
/>
```
**With suffix (kg)**
```jsx
const [weight, setWeight] = useState([75.5]);
<InputNumbers
size="sm"
value={weight}
onValuesChange={setWeight}
suffix={["kg"]}
step={0.1}
/>
```
## Grouped Inputs
Multiple numeric inputs grouped together with coordinated drag selection for multi-dimensional data:
```jsx
const [position, setPosition] = useState([10.5, 20.3, -5.8]);
<InputNumbers
size="sm"
value={position}
onValuesChange={setPosition}
prefix={["x", "y", "z"]}
step={0.1}
/>
```
## Drag Interaction Features
All InputNumbers components support advanced drag interactions:
- **Vertical drag**: Select multiple inputs by dragging up/down
- **Horizontal drag**: Modify selected values by dragging left/right
- **Modifier keys**:
- `Shift` + drag: 5x step size
- `Alt` + drag: 0.2x step size
## Related Components
For specialized input components with built-in units and advanced data types, see the Specialized Input Components documentation.