1 | var $ = require('../internals/export');
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2 | var getBuiltIn = require('../internals/get-built-in');
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3 | var anObject = require('../internals/an-object');
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4 | var FREEZING = require('../internals/freezing');
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5 |
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6 |
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7 |
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8 | $({ target: 'Reflect', stat: true, sham: !FREEZING }, {
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9 | preventExtensions: function preventExtensions(target) {
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10 | anObject(target);
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11 | try {
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12 | var objectPreventExtensions = getBuiltIn('Object', 'preventExtensions');
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13 | if (objectPreventExtensions) objectPreventExtensions(target);
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14 | return true;
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15 | } catch (error) {
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16 | return false;
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17 | }
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18 | }
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19 | });
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