Difference between revisions of "W1154 For Loop"
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== Introduction == | == Introduction == | ||
Loops are the general term for ''executing a defined segment of code zero or more times'', where the number of iterations is dependent upon test conditions within the loop. The '''for loop''' is a construct which enables us to execute a segment of code a ''defined number'' of times. It is thus the most appropriate choice when we know in advance how to calculate the number of iterations prior to beginning the loop. While this construct is not strictly necessary, it provides [[Glossary#Syntactic_Sugar|syntactic sugar]] by clarifying intent. | Loops are the general term for ''executing a defined segment of code zero or more times'', where the number of iterations is dependent upon test conditions within the loop. The '''for loop''' is a construct which enables us to execute a segment of code a ''defined number'' of times. It is thus the most appropriate choice when we know in advance how to calculate the number of iterations prior to beginning the loop. While this construct is not strictly necessary, it provides [[Glossary#Syntactic_Sugar|syntactic sugar]] by clarifying intent. | ||
== For Loops == | == For Loops == | ||
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== Key Concepts == | == Key Concepts == | ||
== Exercises == | == Exercises == | ||
== References == | == References == | ||
Revision as of 20:25, 5 January 2020
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Prerequisites[edit]
Introduction[edit]
Loops are the general term for executing a defined segment of code zero or more times, where the number of iterations is dependent upon test conditions within the loop. The for loop is a construct which enables us to execute a segment of code a defined number of times. It is thus the most appropriate choice when we know in advance how to calculate the number of iterations prior to beginning the loop. While this construct is not strictly necessary, it provides syntactic sugar by clarifying intent.
For Loops[edit]
for loops execute for a defined count of iterations, as such, the test condition is implied within the definition. Through each iteration, a loop control variable is adjusted toward its final goal. When that goal is reached, the loop exits.
