javascript / beginner
Snippet
Checking Variable Types with typeof
The typeof operator allows you to check the data type of a variable at runtime. This is essential in Node.js applications to validate parameters and prevent unexpected logic errors.
snippet.js
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const value = 42;const type = typeof value;console.log(type); // "number"
nodejs
Breakdown
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const value = 42;
Assigns a number to a variable.
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typeof value
The operator returns a string representing the primitive type of the value.