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.
Square brackets is used to declare an Array in Java. We can use it two ways, one is after the data type keyword, and the other is after the variable name. Here is an example on how to declare an int array in Java: int[] thisIsAnIntArray1; int thisIsAnIntArray2[]; both declaration is valid.