e.json

{
    "id": "e",
    "summary": "Euler's number (e)",
    "description": "The real number *e* is a mathematical constant that is the base of the natural logarithm such that *`ln(e) = 1`*. The numerical value is approximately *2.71828*.",
    "categories": [
        "math > constants",
        "math > exponential & logarithmic"
    ],
    "parameters": [],
    "returns": {
        "description": "The numerical value of Euler's number.",
        "schema": {
            "type": "number"
        }
    },
    "links": [
        {
            "rel": "about",
            "href": "http://mathworld.wolfram.com/e.html",
            "title": "Mathematical constant e explained by Wolfram MathWorld"
        }
    ]
}