I have two arrays that I need to compare and ensure they are not equal in terms of their content (property by property).
The arrays and their current values can be seen in the image provided.
Can you recommend a lodash function or JavaScript function that can check for deep equality while excluding the $$hashkey of the arrays?
AngularJS offers a method to compare the equality of two objects without using lodash or pure javascript: angular.equals. You can use it like this:
angular.equals(newValue, oldValue);
Since this method is specific to AngularJS, it handles issues like $$hashkey automatically (by ignoring it). Additionally, it compares property values one by one with type checking included.
If you want to compare objects in an array, you can utilize the _.isEqual function from Lodash. This function thoroughly checks all properties of the objects.
var obj = [{ 'a': 1, b: 2 },{ 'a': 3, b: 4 }];
var other = [{ 'a': 1, b: 2 }, { 'a': 3, b: 4 }];
_.isEqual(obj, other); // => true
Keep in mind that the order of elements in both arrays is crucial. For example, this will result in false:
var obj = [{ 'a': 1, b: 2 },{ 'a': 3, b: 4 }];
var other = [{ 'a': 3, b: 4 },{ 'a': 1, b: 2 }];
_.isEqual(obj, other); // => false
UPDATE
Although _.isEqual requires arrays to be in the same order for comparisons, you can use another lodash function like sortBy to handle this issue as shown below:
_.isEqual(_.sortBy(obj, 'id'), _.sortBy(other, 'id'));
This approach sorts the arrays by id first before checking their equality. You can also sort by multiple properties or a custom function if needed.
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