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.
Java Arrays and Loops. An array is a way to store a collection of elements. Arrays use square brackets [ ] for their syntax. Each array is declared with a type that indicates the type of element that it stores, like this: the int[] type is an array of int elements, a String[] type is an array of string elements.