JavaScript knows two types of “foreach” loops:
- for (idx in values) iterates over the indices of the array
- for (val of values) iterates over the values of the array
Example:
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var values = ["a", "b", "c"]; // indexed from 0 to 2 // Access elements by index for (var idx in values) { console.log("Index: " + idx + " - Value: " + values[idx]); } // Access elements directly for (var val in values) { console.log("Value: " + val); } |
References
- [1] MDN on for .. of