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Post: Introduction to JavaScript – Variables: Review
Introduction to JavaScript – Variables: Review
Great work! 8-) This lesson covered a lot of foundational skills that you will often use in your future programming endeavours.
Let’s review what we learned:
Introduction to JavaScript – Variables: Review
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Variables hold reusable data in a program.
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JavaScript will throw an error if you try to reassign const variables.
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You can reassign variables that you create with the let keyword.
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Unset variables store the primitive data type undefined.
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Mathematical assignment operators make it easy to calculate a new value and assign it to the same variable.
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The + operator is used to interpolate (combine) multiple strings.
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In JavaScript ES6, backticks (`) and ${} are used to interpolate values into a string.
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