js-to-json-logic
This is a Python library that parses a JavaScript expression and converts it into a JsonLogic-compatible object.
This is useful for cases where you want to allow users to input logical expressions in a familiar syntax, but you want to evaluate them using JsonLogic.
This library is inspired by the JavaScript library js-to-json-logic.
Usage
from json_logic import jsonLogic
from js_to_json_logic import transform_js
rule = transform_js("a > 5 && b < 10")
result = jsonLogic(rule, {"a": 6, "b": 8})
print(result) # True
Supported JavaScript Syntax
| Type | Example |
|---|---|
| Literals | 42, "hello", true, false, null |
| Identifiers | a, b, myObject.property |
| Template literals | `Hello, ${name}!` |
| Arrays | [1, 2, 3], [1, 2, ...rest] |
| Unary operations | !a, !!b, -x, +x |
| Conditionals | a > 5, b < 10, c >= 15 |
| Arithmetic | a + b, a - b, a * b, a / b, a % b |
| Equality and inequality | a == 5, b !== 10, c === 15, d !== 20 |
| Logical expressions | a && b, a || b |
| If statements | if (a > 10) { "large" } else if (a > 5) { "medium" } else { "small" } |
| Ternaries | a > 5 ? "yes" : "no" |
| Call expressions | myFunction(a, b) |
| Regex literals | /^abc$/gi |
| Arrow functions | x => x > 5 |
License
This project is licensed under the terms of the MIT license.
1 maintainer
Metadata
1 maintainer
Release files for js-to-json-logic 0.1.0
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| js_to_json_logic-0.1.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 11.1 kB
Release files / js_to_json_logic-0.1.0.tar.gz
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| Tags | Python 3 |
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