However, most browsers today use the shortcut key Alt+Back arrow to go back to the previous page. link brightness_4 code # Ruby code for delete() … But in C++, delete is an operator with a very specific behavior: An expression with the delete operator, first calls the appropriate destructors for each element in the array (if these are of a class type), and then calls an array deallocation function. A gaming keyboard might have more. edit close. Ruby | Hash delete() function Last Updated: 07-01-2020. delete() is an Hash class method which deletes the key-value pair and returns the value from hash whose key is equal to key. In some Internet browsers, you can also press the Backspace key to go back to the previous page. These commands are typically printed above or on the keys. Notice that the other two answers give different functions for the alt key which depend on the operating system being used. Often abbreviated as Del, the Delete key is used to remove characters and other objects.On PCs, the Delete key generally removes the character immediately under the cursor (or to the right of the insertion point), or the highlighted text or object. Each key has a purpose; but more often than not the purpose of some keys escapes us. Example #1: filter_none. The following table specifies the default enhanced-function key assignments that are available for Microsoft keyboards. operator delete is a regular function that can be called explicitly just as any other function. An average keyboard has 100+ keys. How is the Backspace key used and what is its function? The alt key, like all of the other keys on the computer keyboard, can be programmed in a number of ways. However, you can reassign many of the keys by using the Microsoft IntelliType Pro keyboard … Tip. Instead of keypress, use the keyup or keydown event: keypress is meant for PRINTABLE characters, whereas keydown will capture non-printing key presses including delete, backspace, and return. Return: value from hash whose key is equal to deleted key. The Backspace key really only has one function and that is to delete text to the left of the cursor. play_arrow. Enhanced function keys provide quick access to frequently used commands that can increase your productivity. Syntax: Hash.delete() Parameter: Hash array.
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