1 | /*!
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2 | * is-equal-shallow <https://github.com/jonschlinkert/is-equal-shallow>
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3 | *
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4 | * Copyright (c) 2015, Jon Schlinkert.
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5 | * Licensed under the MIT License.
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6 | */
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7 |
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8 | ;
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9 |
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10 | var isPrimitive = require('is-primitive');
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11 |
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12 | module.exports = function isEqual(a, b) {
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13 | if (!a && !b) { return true; }
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14 | if (!a && b || a && !b) { return false; }
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15 |
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16 | var numKeysA = 0, numKeysB = 0, key;
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17 | for (key in b) {
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18 | numKeysB++;
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19 | if (!isPrimitive(b[key]) || !a.hasOwnProperty(key) || (a[key] !== b[key])) {
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20 | return false;
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21 | }
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22 | }
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23 | for (key in a) {
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24 | numKeysA++;
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25 | }
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26 | return numKeysA === numKeysB;
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27 | };
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