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Tell me the concept of for loop

Feb 26, 2024

Tell me the concept of for loop

The concept of a for loop in programming is a control flow statement that allows code to be executed repeatedly based on a given boolean condition.

The for loop is used to iterate over a sequence (that could be a list, a tuple, a dictionary, a set, or a string).

With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc.

Here is a basic example of a for loop in Python:

python

The above code will print "Hello World" followed by the current value of i, five times, starting from 0 to 4.

Structure of a for loop

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Initialization: The loop starts with an initialization of the iterator

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Condition: It is followed by a condition that is evaluated before each iteration. If the condition is true, the code block within the loop is executed

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Iteration: After the code block is executed, the iterator is updated

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Termination: The loop terminates when the condition becomes false

The for loop is a fundamental concept in computer science that is used in various applications such as iterating through data structures, implementing algorithms, and automating repetitive tasks.