| 1 | /**
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| 2 | * Sets a constant default value for the property when it is undefined.
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| 3 | * @template T
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| 4 | * @template {keyof T} Property
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| 5 | * @param {T} object An object.
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| 6 | * @param {Property} property A property of the provided object.
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| 7 | * @param {T[Property]} [defaultValue] The default value to set for the property.
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| 8 | * @returns {T[Property]} The defaulted property value.
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| 9 | */
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| 10 | const d = (object, property, defaultValue) => {
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| 11 | if (typeof object[property] === 'undefined' && typeof defaultValue !== 'undefined') {
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| 12 | object[property] = defaultValue;
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| 13 | }
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| 14 | return object[property];
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| 15 | };
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| 16 |
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| 17 | /**
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| 18 | * Resolves the value for a nested object option.
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| 19 | * @template T
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| 20 | * @template {keyof T} Property
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| 21 | * @template Result
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| 22 | * @param {T} object An object.
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| 23 | * @param {Property} property A property of the provided object.
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| 24 | * @param {function(T | undefined): Result} fn The handler to resolve the property's value.
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| 25 | * @returns {Result} The resolved option value.
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| 26 | */
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| 27 | const n = (object, property, fn) => {
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| 28 | object[property] = fn(object[property]);
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| 29 | return object[property];
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| 30 | };
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| 31 |
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| 32 | module.exports = { d, n };
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