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While loop - Wikipedia In computer programming, a while loop is a control flow statement that allows code to be executed repeatedly based on a Boolean condition The while loop can be thought of as a repeating if statement
Control flow - Wikipedia Python supports conditional execution of code depending on whether a loop was exited early (with a break statement) or not by using an else-clause with the loop
Conditional loop - Wikipedia However, infinite loops can sometimes be used purposely, often with an exit from the loop built into the loop implementation for every computer language, but many share the same basic structure and or concept The While loop and the For loop are the two most common types of conditional loops in most programming languages
Inner loop - Wikipedia The two examples below, written in Python, present a while loop with an inner for loop and a while loop without an inner loop Although both have the same terminating condition for their while loops, the first example will finish faster because of the inner for loop
Do while loop - Wikipedia Some languages may use a different naming convention for this type of loop For example, the Pascal and Lua languages have a " repeat until " loop, which continues to run until the control expression is true and then terminates In contrast a "while" loop runs while the control expression is true and terminates once the expression becomes false
Structured programming - Wikipedia Programming paradigm based on block-based control flowStructured programming is a programming paradigm characterized by source code that uses block -based source code structure to encode control flow such as sequence, selection (i e if-then-else and switch) and iteration (i e for and while) Originally, the central goal of the structured programming movement was to eliminate the need for and
Zen of Python - Wikipedia The official definition of "Pythonic" is: [2][e] An idea or piece of code which closely follows the most common idioms of the Python language, rather than implementing code using concepts common to other languages For example, a common idiom in Python is to loop over all elements of an iterable using a for statement
Conditional (computer programming) - Wikipedia In programming languages that have associative arrays or comparable data structures, such as Python, Perl, PHP or Objective-C, it is idiomatic to use them to implement conditional assignment
Loop invariant - Wikipedia Loop-invariant code consists of statements or expressions that can be moved outside a loop body without affecting the program semantics Such transformations, called loop-invariant code motion, are performed by some compilers to optimize programs