657   function baseIsEqual(value, other, bitmask, customizer, stack) {  argument
664     return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
681   function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {  argument
708         ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
709         : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
721         var result = equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
729     var result = equalObjects(object, other, bitmask, customizer, equalFunc, stack);
977   function copyObject(source, props, object, customizer) {  argument
987       var newValue = customizer
988         ? customizer(object[key], source[key], key, object, source)
1014           customizer = length > 1 ? sources[length - 1] : undefined;
1016       customizer = (assigner.length > 3 && typeof customizer == 'function')
1017         ? (length--, customizer)
1024           assigner(object, source, index, customizer);
1178   function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {  argument
1207 …            (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
1216               equalFunc(arrValue, othValue, bitmask, customizer, stack)
1242   function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {  argument
1279   function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {  argument
1307             ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))