Skip to main content

Function modifiers

cast

Commentary​

added in 0.4.16

Casts a value to a target type. Supports casts to string, integer, double, and boolean.

Casts are strictly to/from string, meaning you can't perform lossy casts like double to/from integer. Use the decimals function modifier you need to manipulate the underlying values.

Examples​

Cast to string​

Use string to cast any value to a string.

{
    "_gen": "normalDistribution",
    "mean": 50,
    "sd": 2,
    "cast": "string"
}
[
    "50.77651499921113",
    "51.85698433131492",
    "49.712590165254085",
    "49.229957979547585",
    "52.863154819457826"
]

Cast to integer​

Use integer to parse a string to an integer.

{
    "_gen": "digitString",
    "n": 5,
    "cast": "integer"
}
[
    22252,
    92618,
    41447,
    44248,
    41395
]

Cast to double​

Use double to parse a string to a double.

{
    "_gen": "constant",
    "x": "10.25",
    "cast": "double"
}
[
    10.25
]

Cast to boolean​

Use boolean to parse a string to a boolean. Invalid values become false.

{
    "t": {
        "_gen": "constant",
        "x": "true",
        "cast": "boolean"
    },
    "f": {
        "_gen": "constant",
        "x": "false",
        "cast": "boolean"
    },
    "i": {
        "_gen": "constant",
        "x": "invalid",
        "cast": "boolean"
    }
}
[
    {
        "t": true,
        "f": false,
        "i": false
    }
]

Specification​

JSON schema​

{
    "type": "string",
    "enum": [
        "string",
        "integer",
        "double",
        "boolean"
    ]
}