The length property of an array is an unsigned, 32-bit integer that is always numerically greater than the highest index of the array. · The length returns the ... ... <看更多>

In Javascript you can change the length of an array. But array.length is an attribute. It is not "computed" each time by counting elements. ... <看更多>

There's no need for the inner loop to compute the length element by element. It's better to use the .length property on each row, ... ... <看更多>

The length of the array is just the highest defined index value of he array plus one, while the count of an array is the actual count of defined ... ... <看更多>

Resize an array with JavaScript is easy. GitHub Gist: instantly share code, notes, and snippets. ... console.log(array.length); // 5. array.length--;. ... <看更多>