Here's a question for you: When it comes to adding elements at the end of a JavaScript array, is there any speed or optimization advantage to using one form over the other? Or does it simply come down to personal preference?
(1) pageData[pageData.length] = theMember;
(2) pageData.push(theMember);
The testing revealed the outcomes across different web browsers:
Array.push
array[array.length]
The data clearly indicates that using an index for arrays is more efficient than using Push in most browsers except for Google Chrome. If compatibility across various browsers is crucial, it would be advisable to go with the utilitarian approach and use indexes whenever possible.
Source:
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