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文件: /node_modules/core-js/modules/es.object.seal.js
编辑文件内容
var $ = require('../internals/export'); var isObject = require('../internals/is-object'); var onFreeze = require('../internals/internal-metadata').onFreeze; var FREEZING = require('../internals/freezing'); var fails = require('../internals/fails'); var nativeSeal = Object.seal; var FAILS_ON_PRIMITIVES = fails(function () { nativeSeal(1); }); // `Object.seal` method // https://tc39.github.io/ecma262/#sec-object.seal $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, { seal: function seal(it) { return nativeSeal && isObject(it) ? nativeSeal(onFreeze(it)) : it; } });
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