28 lines
719 B
TypeScript
Executable File
28 lines
719 B
TypeScript
Executable File
/**
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* Extract an object from another object using specific fields
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* @param jsonObj The source object
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* @param wantedFields The required fields
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* @signature
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* U.extractFromObj(jsonObj, wantedFields)
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*
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* @example
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* U.extractFromObj({ a: 1, b: 2 }, ['a']) // => { a: 1 }
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*
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*/
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export function extractFromObj(jsonObj: Object, wantedFields: string[]): {} {
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return Object.keys(jsonObj).reduce((obj, key) => {
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if (wantedFields.includes(key)) {
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const { value }: any = Object.getOwnPropertyDescriptor(jsonObj, key);
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Object.defineProperty(obj, key, {
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value: value,
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writable: true,
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enumerable: true,
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configurable: true
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});
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}
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return obj;
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}, {});
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}
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