What this snippet does
let allows reassignment; const binds the variable permanently to its initial value.
Expected output
20 100
Why practise typing this
Typing variables code builds muscle memory for the symbols and indentation JavaScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More JavaScript practice
- const configVariables · beginner
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- typeof operatorTypes · beginner
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