Compare objects in Angular

Question

Is it possible to do a  deep  comparison of two object in Angular  What I would like to do is compare each key value pair  For example   Object 1       key1   value1      key2   value2      key3   value3      Object 2       key1   value1      key2   newvalue      key3   value3       What I need is for the comparison to fail since only one of the key value pairs is diffent  In other words ALL of the key value pairs must match exactly or else failure  Is this something already built into Angular  I m sure I could write my own service if I really needed to  but I was hoping it was already built in  Similar to angular equals

User · Answer

Assuming that the order is the same in both objects  just stringify them both and compare   JSON stringify obj1     JSON stringify obj2

User · Answer

To compare two objects you can use   angular equals obj1  obj2   It does a deep comparison and does not depend on the order of the keys See AngularJS DOCS and a little Demo  var obj1       key1   value1     key2   value2     key3   a   aa   b   bb      var obj2       key2   value2     key1   value1     key3   a   aa   b   bb      angular equals obj1  obj2     lt --- would return true

User · Answer

I know it s kinda late answer but I just lost about half an hour debugging cause of this  It might save someone some time   BE MINDFUL  If you use angular equals   on objects that have property obj  something  property name starts with    those properties will get ignored in comparison   Example   var obj1        key0   A     key1   value1     key2   value2     key3   a   aa   b   bb      var obj2        key0   B    key2   value2     key1   value1     key3   a   aa   b   bb      angular equals obj1  obj2     lt --- would return TRUE  despite it s not true

User · Answer

Bit late on this thread   angular equals does deep check  however does anyone know that why its behave differently if one of the member contain     in prefix    You can try this Demo  with following input  var obj3      obj3 a    b   obj3 b     obj3 b  c  true   var obj4      obj4 a    b   obj4 b     obj4 b  c  true   angular equals obj3 obj4

[angularjs] Compare objects in Angular

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