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https://github.com/tdast/tdast-util-from-array
tdast utility to transform a JS array into tdast
https://github.com/tdast/tdast-util-from-array
ast csv tabular-data tdast tdast-util unist util
Last synced: 2 months ago
JSON representation
tdast utility to transform a JS array into tdast
- Host: GitHub
- URL: https://github.com/tdast/tdast-util-from-array
- Owner: tdast
- License: mit
- Created: 2020-09-10T03:45:14.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2020-09-12T04:35:12.000Z (about 4 years ago)
- Last Synced: 2024-07-01T09:05:35.780Z (3 months ago)
- Topics: ast, csv, tabular-data, tdast, tdast-util, unist, util
- Language: JavaScript
- Homepage: https://github.com/tdast
- Size: 8.79 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
- Changelog: changelog.md
- License: license
Awesome Lists containing this project
README
# tdast-util-from-array
[**tdast**][tdast] utility to transform a JS array into tdast.
---
## Install
```sh
npm install tdast-util-from-array
```
## Use
```js
import fromArray from 'tdast-util-from-array';
const array = [
{ column1: 1, column2: 'two', column3: 3, column4: null },
{ column1: null, column2: 'two', column3: 33, column4: 'four' },
];
expect(fromArray(array)).toEqual({
type: 'table',
children: [
{
type: 'row',
index: 0,
children: [
{
type: 'column',
index: 0,
value: 'column1',
},
{
type: 'column',
index: 1,
value: 'column2',
},
{
type: 'column',
index: 2,
value: 'column3',
},
{
type: 'column',
index: 3,
value: 'column4',
},
],
},
{
type: 'row',
index: 1,
children: [
{
type: 'cell',
columnIndex: 0,
rowIndex: 1,
value: 1,
},
{
type: 'cell',
columnIndex: 1,
rowIndex: 1,
value: 'two',
},
{
type: 'cell',
columnIndex: 2,
rowIndex: 1,
value: 3,
},
{
type: 'cell',
columnIndex: 3,
rowIndex: 1,
value: null,
},
],
},
{
type: 'row',
index: 2,
children: [
{
type: 'cell',
columnIndex: 0,
rowIndex: 2,
value: null,
},
{
type: 'cell',
columnIndex: 1,
rowIndex: 2,
value: 'two',
},
{
type: 'cell',
columnIndex: 2,
rowIndex: 2,
value: 33,
},
{
type: 'cell',
columnIndex: 3,
rowIndex: 2,
value: 'four',
},
],
},
],
});
```
## API
### `fromArray(array[, options])`
#### Interface
```ts
function fromArray(array: any[], options?: Options): Table
```
Transforms a JS array into a tdast tree.
Created `Row`, `Column` and `Cell` nodes are automatically assigned relevant row/column indices.
Infers and creates columns from object keys if not explicitly specified. Columns can be explicitly specified in `options`, affording more structure to the tdast `Column` nodes.
#### Example
```js
const array = [
{ column1: 1, column2: 'two', column3: 3, column4: null },
{ column1: null, column2: 'two', column3: 33, column4: 'four' },
];
const options = {
columns: [
{
label: 'Column 1',
data: { category: 'A' },
dataType: 'number',
value: 'column1',
},
{
label: 'Column 2',
data: { category: 'B' },
dataType: 'string',
value: 'column2',
},
{
label: 'Column 3',
data: { category: 'A' },
dataType: 'number',
value: 'column3',
},
{
label: 'Column 1',
data: { category: 'B' },
dataType: 'mixed',
value: 'column4',
},
],
};
expect(fromArray(array, options)).toEqual({
type: 'table',
children: [
{
type: 'row',
index: 0,
children: [
{
type: 'column',
index: 0,
label: 'Column 1',
data: { category: 'A' },
dataType: 'number',
value: 'column1',
},
{
type: 'column',
index: 1,
label: 'Column 2',
data: { category: 'B' },
dataType: 'string',
value: 'column2',
},
{
type: 'column',
index: 2,
label: 'Column 3',
data: { category: 'A' },
dataType: 'number',
value: 'column3',
},
{
type: 'column',
index: 3,
label: 'Column 1',
data: { category: 'B' },
dataType: 'mixed',
value: 'column4',
},
],
},
{
type: 'row',
index: 1,
children: [
{
type: 'cell',
columnIndex: 0,
rowIndex: 1,
value: 1,
},
{
type: 'cell',
columnIndex: 1,
rowIndex: 1,
value: 'two',
},
{
type: 'cell',
columnIndex: 2,
rowIndex: 1,
value: 3,
},
{
type: 'cell',
columnIndex: 3,
rowIndex: 1,
value: null,
},
],
},
{
type: 'row',
index: 2,
children: [
{
type: 'cell',
columnIndex: 0,
rowIndex: 2,
value: null,
},
{
type: 'cell',
columnIndex: 1,
rowIndex: 2,
value: 'two',
},
{
type: 'cell',
columnIndex: 2,
rowIndex: 2,
value: 33,
},
{
type: 'cell',
columnIndex: 3,
rowIndex: 2,
value: 'four',
},
],
},
],
});
```
#### Related interfaces
```ts
interface Column {
value: any;
data?: Data;
dataType?: string;
label?: string;
}
interface Options {
columns?: Column[];
}
```
[tdast]: https://github.com/tdast/tdast