To use a keyboard shortcut, hold down one or more modifier keys while pressing the last key of the shortcut. For example, to use the shortcut Command-C (copy), hold down Command, press C, then release both keys. Mac menus and keyboards often use symbols for certain keys, including the modifier keys: 1  Command â.
The syntax of the JavaScript for â¦ in loop is as follows: 1  Iterates through all enumerable properties of an object. 2  Iterates through all used indices of array including all user-defined properties of array object, if any. 3  Thus it may be better to use a traditional for loop with a numeric index when iterating over arrays.
MultiDimensionArray.java: multi-dimensional Arrays in Java. Recall that, in Java, you can declare multi-dimensional arrays. For example, you can have a 5 x 5 array, that, thought about in an abstract way, is a 5-by-5 grid with a total of 25 boxes, each of which contains an object of a certain type.