Created
January 10, 2019 22:21
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deepFreeze MDN
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| module.exports = function deepFreeze (o) { | |
| Object.freeze(o); | |
| Object.getOwnPropertyNames(o).forEach(function (prop) { | |
| if (o.hasOwnProperty(prop) | |
| && o[prop] !== null | |
| && (typeof o[prop] === "object" || typeof o[prop] === "function") | |
| && !Object.isFrozen(o[prop])) { | |
| deepFreeze(o[prop]); | |
| } | |
| }); | |
| return o; | |
| }; |
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