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Number generators

Here is a list of predefined generators for generating numeric values.

Random Integer

Random integer generator returns a number in a specified range.

Configuration fields are min and max, while min is optional; when not provided, the default minimum value will be used (0).

Throws an error when min > max or when max is not provided.

Examples

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const config: IntegerGeneratorConfig = {
    min: 13,
    max: 77
}

const generator = new IntegerGenerator(config);

console.log(generator.generate());

Output

39

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const config: IntegerGeneratorConfig = {
    min: 13,
    max: 77
}

const generator = getValueGenerator('range-integer', config);

const value = generator.get({});

Output

39

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const schema: SchemaInput = {
    fields: {
        value: {
            type: 'range-integer',
            config: {
                min: 13,
                max: 77
            }
        }
    }
}

const fabricator = new Fabricator(schema);

console.log(fabricator.generate());

Output

{ value: 39 }

Random Float

Random float generator returns a number in a specified range with stripping the number of decimal digits to specified number. Of course, this is a maximum number of digits, in the most extreme situation, it might end up with returning an integer - when all the decimal digits are zeros.

Configuration fields are min, max and decimalDigits. Fields min and decimalDigits are optional:

  • when min not provided, it uses min: 0.
  • when decimalDigits not provided, it uses decimalDigits: 2.

It throws an error when min > max, when max is not provided or when the decimalDigits is negative.

Examples

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const config: FloatGeneratorConfig = {
    min: 13,
    max: 77,
    decimalDigits: 7
}

const generator = new FloatGenerator(config);

console.log(generator.generate());

Output

67.4635403

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const config: FloatGeneratorConfig = {
    min: 13,
    max: 77,
    decimalDigits: 7
}

const generator = getValueGenerator('range-float', config);

console.log(generator.get({}));

Output

67.4635403

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const schema: SchemaInput = {
    fields: {
        value: {
            type: 'range-float',
            config: {
                min: 13,
                max: 77,
                decimalDigits: 7
            }
        }
    }
}

const fabricator = new Fabricator(schema);

console.log(fabricator.generate());

Output

{ value: 67.4635403 }