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22 lines
803 B
22 lines
803 B
/**
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* Return a "masked" copy of the given object.
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*
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* The returned object includes only the properties present in the mask. The
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* mask is an object that mirrors the structure of the given object, except
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* the only values are `true` or a sub-mask. `true` implies the property
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* should be included, and a sub-mask implies the property should be further
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* masked according to that sub-mask.
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*
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* @param {Object} object - The object to mask
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* @param {Object<object | boolean>} mask - The mask to apply to the object
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*/
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export function maskObject(object, mask) {
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return Object.keys(object).reduce((state, key) => {
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if (mask[key] === true) {
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state[key] = object[key];
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} else if (mask[key]) {
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state[key] = maskObject(object[key], mask[key]);
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}
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return state;
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}, {});
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}
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