Programming-Idioms

Edit summary for version 72 by justafoo:
[JS] comment

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2019-09-26, 18:00:39

2019-09-26, 18:01:57

Idiom #7 Iterate over list indexes and values

Print each index i with its value x from an array-like collection items

Print each index i with its value x from an array-like collection items

traverse traversal

traverse traversal

for (var i in items) {
   console.log("index=" + i + ", value=" + items[i]);
}

for (var i in items) {
   console.log("index=" + i + ", value=" + items[i]);
}

this is a horrible implementation, use the "functional" one above. If you don't need the index, using "for...of" is ok, "for...in" almost never is.

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