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<p>they are simpler to understand and reason about and offer higher security than mutable objects.</p>

<p><big> Concepts </big></p>
<p><big> Immutable variables </big></p>
<p>In <a href="page.php?w=imperative_programming">imperative programming</a>, values held in <a href="page.php?w=program_variable">program variable</a>s whose content never changes are known as <a href="page.php?w=Constant_%28programming%29">constants</a> to differentiate them from variables that could be altered during execution. Examples include conversion factors from meters to feet, or the</p><p>
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