Constructor
new PositiveIntegerColumn()
- Source:
Example
const col = new PositiveIntegerColumn('age', 3, 'Age in years');
col.toValue('045'); // 45
col.toStr(45); // '045'Extends
Members
description :string
Description of the column.
Type:
- string
- Inherited From:
- Source:
end :number
1-indexed end position of the column within a row line.
Type:
- number
- Inherited From:
- Source:
name :string
Name of the column.
Type:
- string
- Inherited From:
- Source:
size :number
Character width of the column.
Type:
- number
- Inherited From:
- Source:
start :number|null
1-indexed start position of the column within a row line.
Type:
- number | null
- Inherited From:
- Source:
Methods
toStr(value) → {string}
Serializes a non-negative integer into a zero-padded fixed-width string.
Parameters:
| Name | Type | Description |
|---|---|---|
value |
number | null | Positive integer value to serialize. Null/undefined serializes to zeros. |
- Overrides:
- Source:
Throws:
-
If value is not a non-negative integer or exceeds size formatted length.
- Type
- Error
Returns:
Zero-padded fixed-width string.
- Type
- string
toValue(slice) → {number}
Converts raw string slice from file into a positive integer.
Parameters:
| Name | Type | Description |
|---|---|---|
slice |
string | Raw fixed-width slice consisting of digits. |
- Overrides:
- Source:
Throws:
-
If slice contains non-digit characters or parses to negative integer.
- Type
- Error
Returns:
Parsed integer value.
- Type
- number
validateToStrSize(value) → {string}
Validates that a formatted string representation matches the required column size.
Parameters:
| Name | Type | Description |
|---|---|---|
value |
string | The formatted string to validate. |
- Inherited From:
- Source:
Throws:
-
If formatted string length does not equal column size.
- Type
- Error
Returns:
The validated string.
- Type
- string