Conditionals: Difference between revisions
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[[file:arrows.png|right|frame|Programming basics<ref>http://www.flaticon.com/</ref>]] | [[file:arrows.png|right|frame|Programming basics<ref>http://www.flaticon.com/</ref>]] | ||
Programs generally run from the "top down". A computer will read line one, execute line one, and then go to line two, for example. | |||
It is common to include conditional statements to decide if a program should "do something else" if a specific condition is true or false. | |||
A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Conditionals depend on [[operators]] to evaluate if an expression is true or false. A condition and selection are not the same thing. A condition asks a question. A selection processes the answer. | A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Conditionals depend on [[operators]] to evaluate if an expression is true or false. A condition and selection are not the same thing. A condition asks a question. A selection processes the answer. | ||
With gratitude to | With gratitude to and permission from Stephen Hughes (Coe College) and Philip East (University of Northern Iowa)<ref>http://www.cs.uni.edu/~east/</ref>, The list below is an example of types of conditional questions. You should '''start''' thinking about conditions in plain english before you start thinking about [[operators]]. | ||
* Match | * Match | ||
Revision as of 06:27, 7 August 2019
Programs generally run from the "top down". A computer will read line one, execute line one, and then go to line two, for example. It is common to include conditional statements to decide if a program should "do something else" if a specific condition is true or false.
A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Conditionals depend on operators to evaluate if an expression is true or false. A condition and selection are not the same thing. A condition asks a question. A selection processes the answer.
With gratitude to and permission from Stephen Hughes (Coe College) and Philip East (University of Northern Iowa)[2], The list below is an example of types of conditional questions. You should start thinking about conditions in plain english before you start thinking about operators.
- Match
- Threshold
- Range
- One-of
- Not-match
- Not one of
- All of
- Some of
- Eligible
Conditional operators[edit]
Some videos[edit]