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In computer programming, a sentinel value (also referred to as a flag value, trip value, rogue value, signal value, or dummy data) is a special value in the context of an algorithm which uses its presence as a condition of termination, typically in a loop or recursive algorithm.
A Binary Search Tree is a node-based data structure where each node contains a key and two subtrees, the left and right. For all nodes, the left subtree's key must be less than the node's key, and the right subtree's key must be greater than the node's key.
By returning a null object (i.e., an empty list) instead, there is no need to verify that the return value is in fact a list. The calling function may simply iterate the list as normal, effectively doing nothing. It is, however, still possible to check whether the return value is a null object (an empty list) and react differently if desired.
In computer programming, a null-terminated string is a character string stored as an array containing the characters and terminated with a null character (a character with an internal value of zero, called "NUL" in this article, not same as the glyph zero).
Cozy up this winter with these easy and delicious dinner recipes. These recipes feature tons of seasonal vegetables like cauliflower, squash, leafy greens and root vegetables, like beets and carrots.
Earth-return telegraph is the system whereby the return path for the electric current of a telegraph circuit is provided by connection to the earth through an earth electrode. Using earth return saves a great deal of money on installation costs since it halves the amount of wire that is required, with a corresponding saving on the labour ...
While Putin, Russia's paramount leader since the last day of 1999, is still in power, Navalnaya said she would not return. Putin turned 72 this month. Navalny, 47, died suddenly on Feb. 16 ...
Eddie Redmayne thriller 'Day of the Jackal' will return for a 2nd season. Finance. Finance. Business Insider. Stock market today: Indexes end lower as tech slips and bond yields rise after PPI.