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/wp-includes/js/dist/ -> is-shallow-equal.js (source)

   1  this["wp"] = this["wp"] || {}; this["wp"]["isShallowEqual"] =
   2  /******/ (function(modules) { // webpackBootstrap
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   8  /******/
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  84  /******/     // Load entry module and return exports
  85  /******/     return __webpack_require__(__webpack_require__.s = 327);
  86  /******/ })
  87  /************************************************************************/
  88  /******/ ({
  89  
  90  /***/ 327:
  91  /***/ (function(module, exports, __webpack_require__) {
  92  
  93  "use strict";
  94  
  95  
  96  /**
  97   * Internal dependencies;
  98   */
  99  var isShallowEqualObjects = __webpack_require__( 328 );
 100  var isShallowEqualArrays = __webpack_require__( 329 );
 101  
 102  var isArray = Array.isArray;
 103  
 104  /**
 105   * Returns true if the two arrays or objects are shallow equal, or false
 106   * otherwise.
 107   *
 108   * @param {(Array|Object)} a First object or array to compare.
 109   * @param {(Array|Object)} b Second object or array to compare.
 110   *
 111   * @return {boolean} Whether the two values are shallow equal.
 112   */
 113  function isShallowEqual( a, b ) {
 114      if ( a && b ) {
 115          if ( a.constructor === Object && b.constructor === Object ) {
 116              return isShallowEqualObjects( a, b );
 117          } else if ( isArray( a ) && isArray( b ) ) {
 118              return isShallowEqualArrays( a, b );
 119          }
 120      }
 121  
 122      return a === b;
 123  }
 124  
 125  module.exports = isShallowEqual;
 126  module.exports.isShallowEqualObjects = isShallowEqualObjects;
 127  module.exports.isShallowEqualArrays = isShallowEqualArrays;
 128  
 129  
 130  /***/ }),
 131  
 132  /***/ 328:
 133  /***/ (function(module, exports, __webpack_require__) {
 134  
 135  "use strict";
 136  
 137  
 138  var keys = Object.keys;
 139  
 140  /**
 141   * Returns true if the two objects are shallow equal, or false otherwise.
 142   *
 143   * @param {Object} a First object to compare.
 144   * @param {Object} b Second object to compare.
 145   *
 146   * @return {boolean} Whether the two objects are shallow equal.
 147   */
 148  function isShallowEqualObjects( a, b ) {
 149      var aKeys, bKeys, i, key, aValue;
 150  
 151      if ( a === b ) {
 152          return true;
 153      }
 154  
 155      aKeys = keys( a );
 156      bKeys = keys( b );
 157  
 158      if ( aKeys.length !== bKeys.length ) {
 159          return false;
 160      }
 161  
 162      i = 0;
 163  
 164      while ( i < aKeys.length ) {
 165          key = aKeys[ i ];
 166          aValue = a[ key ];
 167  
 168          if (
 169              // In iterating only the keys of the first object after verifying
 170              // equal lengths, account for the case that an explicit `undefined`
 171              // value in the first is implicitly undefined in the second.
 172              //
 173              // Example: isShallowEqualObjects( { a: undefined }, { b: 5 } )
 174              ( aValue === undefined && ! b.hasOwnProperty( key ) ) ||
 175              aValue !== b[ key ]
 176          ) {
 177              return false;
 178          }
 179  
 180          i++;
 181      }
 182  
 183      return true;
 184  }
 185  
 186  module.exports = isShallowEqualObjects;
 187  
 188  
 189  /***/ }),
 190  
 191  /***/ 329:
 192  /***/ (function(module, exports, __webpack_require__) {
 193  
 194  "use strict";
 195  
 196  
 197  /**
 198   * Returns true if the two arrays are shallow equal, or false otherwise.
 199   *
 200   * @param {Array} a First array to compare.
 201   * @param {Array} b Second array to compare.
 202   *
 203   * @return {boolean} Whether the two arrays are shallow equal.
 204   */
 205  function isShallowEqualArrays( a, b ) {
 206      var i;
 207  
 208      if ( a === b ) {
 209          return true;
 210      }
 211  
 212      if ( a.length !== b.length ) {
 213          return false;
 214      }
 215  
 216      for ( i = 0; i < a.length; i++ ) {
 217          if ( a[ i ] !== b[ i ] ) {
 218              return false;
 219          }
 220      }
 221  
 222      return true;
 223  }
 224  
 225  module.exports = isShallowEqualArrays;
 226  
 227  
 228  /***/ })
 229  
 230  /******/ });


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