[JS] Array - Deconstructing assignment

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Sample shows that automatically assign array elements to new variables. They assigned value type is not an array.

[JS] Deconstruct an object

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Example shows that how to deconstruct an object to assign to another object.

[JS] Simple way to measure execution time

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This sample shows count execution time for a function.

[SQL] Duplicate entry of Primary Index

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If you see Duplicate entry of Primary Index (Primary Key) Error Then most of case might be an user clicked request multiple times or query executed multiple ...

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Baisc boolean logic sample.