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kevinchisholm/_javascript-javascript-for-in-vs-for-of.md

Last active February 1, 2018 14:33
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_javascript-javascript-for-in-vs-for-of.md
Raw
example-1.js
var days = ['monday', 'tuesday', 'wednesday', 'thursday', 'friday'];
for (var day in days) {
console.log(day);
}
/*
OUTPUT:
0
1
2
3
4
5
*/
Raw
example-2.js
var days = ['monday', 'tuesday', 'wednesday', 'thursday', 'friday'];
for (var day in days) {
console.log(days[day]);
}
/*
OUTPUT:
monday
tuesday
wednesday
thursday
friday
*/
Raw
example-3.js
var days = ['monday', 'tuesday', 'wednesday', 'thursday', 'friday'];
for (var day of days) {
console.log(day);
}
/*
OUTPUT:
monday
tuesday
wednesday
thursday
friday
*/
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