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

   1  this["wp"] = this["wp"] || {}; this["wp"]["isShallowEqual"] =
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  87  /************************************************************************/
  88  /******/ ({
  89  
  90  /***/ 407:
  91  /***/ (function(module, exports, __webpack_require__) {
  92  
  93  "use strict";
  94  
  95  
  96  /**
  97   * Internal dependencies;
  98   */
  99  var isShallowEqualObjects = __webpack_require__( 408 );
 100  var isShallowEqualArrays = __webpack_require__( 409 );
 101  
 102  var isArray = Array.isArray;
 103  
 104  /**
 105   * @typedef {{[key: string]: any}} ComparableObject
 106   */
 107  
 108  /**
 109   * Returns true if the two arrays or objects are shallow equal, or false
 110   * otherwise.
 111   *
 112   * @param {any[]|ComparableObject} a First object or array to compare.
 113   * @param {any[]|ComparableObject} b Second object or array to compare.
 114   *
 115   * @return {boolean} Whether the two values are shallow equal.
 116   */
 117  function isShallowEqual( a, b ) {
 118      if ( a && b ) {
 119          if ( a.constructor === Object && b.constructor === Object ) {
 120              return isShallowEqualObjects( a, b );
 121          } else if ( isArray( a ) && isArray( b ) ) {
 122              return isShallowEqualArrays( a, b );
 123          }
 124      }
 125  
 126      return a === b;
 127  }
 128  
 129  module.exports = isShallowEqual;
 130  module.exports.isShallowEqualObjects = isShallowEqualObjects;
 131  module.exports.isShallowEqualArrays = isShallowEqualArrays;
 132  
 133  
 134  /***/ }),
 135  
 136  /***/ 408:
 137  /***/ (function(module, exports, __webpack_require__) {
 138  
 139  "use strict";
 140  
 141  
 142  var keys = Object.keys;
 143  
 144  /**
 145   * Returns true if the two objects are shallow equal, or false otherwise.
 146   *
 147   * @param {import('.').ComparableObject} a First object to compare.
 148   * @param {import('.').ComparableObject} b Second object to compare.
 149   *
 150   * @return {boolean} Whether the two objects are shallow equal.
 151   */
 152  function isShallowEqualObjects( a, b ) {
 153      var aKeys, bKeys, i, key, aValue;
 154  
 155      if ( a === b ) {
 156          return true;
 157      }
 158  
 159      aKeys = keys( a );
 160      bKeys = keys( b );
 161  
 162      if ( aKeys.length !== bKeys.length ) {
 163          return false;
 164      }
 165  
 166      i = 0;
 167  
 168      while ( i < aKeys.length ) {
 169          key = aKeys[ i ];
 170          aValue = a[ key ];
 171  
 172          if (
 173              // In iterating only the keys of the first object after verifying
 174              // equal lengths, account for the case that an explicit `undefined`
 175              // value in the first is implicitly undefined in the second.
 176              //
 177              // Example: isShallowEqualObjects( { a: undefined }, { b: 5 } )
 178              ( aValue === undefined && ! b.hasOwnProperty( key ) ) ||
 179              aValue !== b[ key ]
 180          ) {
 181              return false;
 182          }
 183  
 184          i++;
 185      }
 186  
 187      return true;
 188  }
 189  
 190  module.exports = isShallowEqualObjects;
 191  
 192  
 193  /***/ }),
 194  
 195  /***/ 409:
 196  /***/ (function(module, exports, __webpack_require__) {
 197  
 198  "use strict";
 199  
 200  
 201  /**
 202   * Returns true if the two arrays are shallow equal, or false otherwise.
 203   *
 204   * @param {any[]} a First array to compare.
 205   * @param {any[]} b Second array to compare.
 206   *
 207   * @return {boolean} Whether the two arrays are shallow equal.
 208   */
 209  function isShallowEqualArrays( a, b ) {
 210      var i;
 211  
 212      if ( a === b ) {
 213          return true;
 214      }
 215  
 216      if ( a.length !== b.length ) {
 217          return false;
 218      }
 219  
 220      for ( i = 0; i < a.length; i++ ) {
 221          if ( a[ i ] !== b[ i ] ) {
 222              return false;
 223          }
 224      }
 225  
 226      return true;
 227  }
 228  
 229  module.exports = isShallowEqualArrays;
 230  
 231  
 232  /***/ })
 233  
 234  /******/ });


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