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Concept
Optional Chaining
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Summary
Optional Chaining
is a feature in JavaScript that allows developers to safely access
Deeply nested object properties
without having to explicitly check for
Null or undefined
at each level. This reduces the risk of
Runtime Errors
and
Simplifies code
by using the '?
'?.' operator
to short-circuit and
Return undefined
if any part of the chain is nullish.
Concepts
JavaScript
Nullish Coalescing
Short-circuit Evaluation
Error Handling
Object Property Access
Undefined
Null
Null Coalescing
Relevant Degrees
Computer Science and Data Processing 70%
Management Activities and Operations 20%
Software Engineering and Development 10%
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