Using the push method or .length when adding to array?

Question

What are the downsides to doing:

var myArray = [];
myArray[myArray.length] = val1;
myArray[myArray.length] = val2;

instead of:

Answer 1

There seems to be discrepancy on which test is faster among the varying JavaScript engines. The differences in speed may be negligible (unless an unholy amount of pushes are needed). In that case, the prudent developer should always err on the side of readability. In this case, in my opinion and the opinion of @TheifMaster is that [].push() is cleaner and it is easier to read. Maintenance of code is the most expensive part of coding.