18 lines
387 B
JavaScript
18 lines
387 B
JavaScript
const deepFreeze = obj => {
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Object.freeze(obj);
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Object.getOwnPropertyNames(obj).forEach(function(prop) {
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if (
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obj.hasOwnProperty(prop) &&
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obj[prop] !== null &&
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(typeof obj[prop] === 'object' || typeof obj[prop] === 'function') &&
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!Object.isFrozen(obj[prop])
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) {
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deepFreeze(obj[prop]);
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}
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});
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return obj;
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};
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module.exports = deepFreeze;
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