https://github.com/mesopelagique/formula_compose

Chained formula executions
https://github.com/mesopelagique/formula_compose

4d-code 4d-component

Last synced: about 1 month ago
JSON representation

Chained formula executions

• Host: GitHub
• URL: https://github.com/mesopelagique/formula_compose
• Owner: mesopelagique
• License: mit
• Created: 2020-02-07T11:10:53.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-02-17T08:59:15.000Z (about 5 years ago)
• Last Synced: 2024-07-29T16:17:11.113Z (9 months ago)
• Topics: 4d-code, 4d-component
• Language: 4D
• Homepage: https://mesopelagique.github.io/formula_compose/
• Size: 16.6 KB
• Stars: 3
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
[![language](https://img.shields.io/static/v1?label=language&message=4d&color=blue)](https://developer.4d.com/)

[![language-top](https://img.shields.io/github/languages/top/mesopelagique/formula_compose.svg)](https://developer.4d.com/)

![code-size](https://img.shields.io/github/languages/code-size/mesopelagique/formula_compose.svg)

[![release](https://img.shields.io/github/v/release/mesopelagique/formula_compose)](https://github.com/mesopelagique/formula_compose/releases/latest)

[![license](https://img.shields.io/github/license/mesopelagique/formula_compose)](LICENSE)

# ⛓ Formula Composition

Create a new `Formula` from a list of `Formula`.

![maths](https://latex.codecogs.com/png.latex?f%28x%29&space;\cdot&space;g%28y%29&space;\cdot&space;h%28z%29&space;\Leftrightarrow&space;h%28g%28f%28x%29%29%29)

Result of previous `Formula` computation is used as parameter for the next one. So you can chain multiple operations.

## Examples

```4d

$result:=formula_compose (Formula($1+1);Formula($1+2)).call(Null;0) // (0 + 1) + 2 = 3

// or using collection

$formulas:=New collection(Formula($1+1);Formula($1+2)) // add one then add 2

$result:=formula_compose ($formulas).call(Null;0) // (0 + 1) + 2 = 3

```

### Assigning to an object

```4d

$operation:=New object("compute";formula_compose ($formulas))

$result:=$operation.compute(3) // (3 + 1) + 2 = 5

```

more in [formula_compose](Documentation/Methods/formula_compose.md)