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Front End Web Development Techdegree Graduate 18,858 Pointscan 'var' be 'let' or 'const' in a for in loop?
Sample code :
for (var key in person) {
console.log(`${key} : ${person[key]}`);
}
1 Answer
Steven Parker
231,153 PointsIt's actually quite advantageous to use "let" in some situations because the variable scope will be limited to within the loop body.
You wouldn't use "const" since you will want the value to change as the loop runs.
melissamyra
Front End Web Development Techdegree Graduate 18,858 Pointsmelissamyra
Front End Web Development Techdegree Graduate 18,858 PointsThank you Steven! I was confused about variables being a parameter in the 'for in' loop or if 'var' was part of the loop syntax, but I see now how it works the same as other loops like the index 'i' thing.