Nov 25, 2013 · What is the difference between .size() and .length ? Is .size() only for arraylists and .length only for arrays?

I know how to use the JavaScript for loops to cycle through arrays for example, but I still didn't understand what the array.length -1 means, specifically the -1 part. When using a for loop over an

Aug 8, 2008 · 38 This method gets all your object's property names in an array, so you can get the length of that array which is equal to your object's keys' length.

Closed 1 year ago. length() returns the number of characters in the string and size() returns a size_t which is also the same but used to make it consistent with other STL containers. For computing …

Dec 27, 2009 · Why do we have the length of an array as an attribute, array.length, and for String we have a method, str.length()? Is there some reason?

5 testvar [1] is the value of that array index, which is the number 2. Numbers don't have a length property, and you're checking for 2.length which is undefined. If you want the length of the array just …

If you want to access the number 4 in the array specifically, though, 4's name is no longer 4 - it's 3! So you use length-1 because when it comes to indexes, we're using the new name given to the physical …

Sep 26, 2008 · 52 Since the Length property of System.String is an Int32, I would guess that that the maximum length would be 2,147,483,647 chars (max Int32 size). If it allowed longer you couldn't …

The LENGTH () (MySQL) or LEN () (MSSQL) function will return the length of a string in a column that you can use as a condition in your WHERE clause. Edit I know this is really old but thought I'd …

To get the number of columns, we need to access the first array and consider its length. In this case, we access [1, 1, 1, 1] and thus, the number of columns = 4.