TODO#139894 [ footer -最下方說明與保經代合作 ] 文案修改

HelenHuang

2022-06-09 9bdb95c9e34cef640534e5e5a1e2225a80442000

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'use strict';
 
var supportsDescriptors = require('define-properties').supportsDescriptors;
var functionsHaveNames = require('functions-have-names')();
var getPolyfill = require('./polyfill');
var defineProperty = Object.defineProperty;
var TypeErr = TypeError;
 
module.exports = function shimName() {
    var polyfill = getPolyfill();
    if (functionsHaveNames) {
        return polyfill;
    }
    if (!supportsDescriptors) {
        throw new TypeErr('Shimming Function.prototype.name support requires ES5 property descriptor support.');
    }
    var functionProto = Function.prototype;
    defineProperty(functionProto, 'name', {
        configurable: true,
        enumerable: false,
        get: function () {
            var name = polyfill.call(this);
            if (this !== functionProto) {
                defineProperty(this, 'name', {
                    configurable: true,
                    enumerable: false,
                    value: name,
                    writable: false
                });
            }
            return name;
        }
    });
    return polyfill;
};