The === or identity operator compares the identity of the objects . It checks whether the operands refer to the same object. As you can see, arr1 and arr2 do not refer to the same object, despite the objects being equal.
Read moreWhat does == and === mean?
== is used for comparison between two variables irrespective of the datatype of variable. === is used for comparision between two variables but this will check strict type, which means it will check datatype and compare two values.
Read moreWhat is == and === in Swift?
== is used to check if two variables are equal i.e 2 == 2 . But in case of === it stands for equality i.e if two instances referring to the same object example in case of classes a reference is created which is held by many other instances. Follow this answer to receive notifications.2 Haz 2014
Read moreWhat does == mean in a code?
In programming languages == sign or double equal sign means we are comparing right side with left side . And this comparison returns true or false. We usually use this comparison inside if condition to do something specific. Double equal operator is a very common used operator after single equal.
Read moreWhat is _ variable in Swift?
Variables are used to store data in memory so that we can use them in program . Variables are like container that can hold data which can be changed later. Every variable has a unique name called identifier.
Read moreWhat is _ in Swift function parameter?
Omitting Argument Labels If you don’t want an argument label for a parameter, write an underscore ( _ ) instead of an explicit argument label for that parameter. // refer to the argument values for the first and second parameters.
Read moreWhat does _: mean in Swift documentation?
In the documentation it is being used as a wildcard to indicate a function that takes an unnamed parameter .
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