Pro EP 31 : SequenceEqual Method in LINQ for Lists Comparison

♉ This method is used to check whether two sequences are equal or not and it returns true/false. If two sequence have same elements in same order and same values those are considered equal according this method.

♉ It has an overload method as well that takes 𝙸𝙴𝚚𝚞𝚊𝚕𝚒𝚝𝚢𝙲𝚘𝚖𝚙𝚊𝚛𝚎𝚛 that allows us to provide a comparer of our own choice if we don’t want to use by default.

♉ Default comparer is case sensitive, to make it case-insensitive we can pass 𝚂𝚝𝚛𝚒𝚗𝚐𝙲𝚘𝚖𝚙𝚊𝚛𝚎𝚛.𝙾𝚛𝚍𝚒𝚗𝚊𝚕𝙸𝚐𝚗𝚘𝚛𝚎𝙲𝚊𝚜𝚎 in overloaded method.

♉ If sequence are complex by default their reference is compared instead of values , to compare values we have to provide our custom comparer.

We need to add a custom comparer.

Now we can use it to compare complex lists

♉If we want to compare two sequence that are not in same order we need to first order them ascend/descend and then perform comparison

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