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What does undefined value mean in JavaScript?
What does undefined value mean in JavaScript?
✍: Guest
Undefined value means the variable used in the code doesn't exist or is not assigned any value, or the property doesnt exist.
2011-01-18, 3887👍, 0💬
Related Topics:
What is "this" keyword?
What is "this" keyword? It refers to the current object. 2010-12-28, 3724👍, 0💬
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