LinkedIn principal author Doug Winnie explains how logical operators work to create compound and complex conditional tests. Using logical operators like OR and AND, coders and programmers can combine multiple Boolean values, variables, and evaluations to resolve as a single answer. The logical NOT operator reverses an existing Boolean value.
- Simple questions are easy to understand and program,…but life is rarely simple.…When you create conditional tests sometimes you need…to ask multiple questions to get…to the single true or false answer you need to proceed.…In programming you can do exactly that…with logical operators.…If we have a single test,…you will get a single true or false answer.…This can be a literal value, a variable,…an evaluation using equality operators…or a function that returns a boolean value type.…
But if I have two tests, I need to find a way…to get a single true or false answer.…One possible question to ask is if A is true…or if B is true, then it is true.…This uses the or logical operator.…It says that if either of the items are true,…then the whole thing is true.…With two tests there are four possible combinations.…Three of which would evaluate as true,…and one would be false.…The only way this could be false is…if both evaluations were false.…
The other possible question to ask is if A is true and…if B is true, then it is true.…
Author
Doug Winnie
Released
11/28/2016Join Doug Winnie as he explains the principles of programming and helps you connect to core concepts by exploring three ways that programmers perform their jobs. Doug starts by sharing the history of coding and then dives into functions, values, variables, and parameters used to define actions. He covers capturing input from users, creating conditional tests, using loops with arrays, and object-oriented programming basics. He also takes you beyond programming, into processes like debugging, refactoring, and building iteratively.
- Working with values and variables
- Breaking down tasks
- Customizing functions and parameters
- Building conditional tests
- Creating and changing arrays
- Working with objects and classes
- Debugging and refactoring code
- Going beyond the code as a programmer
Skill Level Beginner
Duration
Views
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Introduction
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Welcome1m 40s
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What you should know1m 3s
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1. Control Computers with Code
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History of programming2m 9s
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Forms of programming5m 12s
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2. Define Actions Using Code
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Break down tasks2m 29s
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Variables and scope2m 9s
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Return values from functions2m 15s
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Work with an API1m 27s
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3. Repeat Actions and Test for Conditions
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Capture input from the user3m 31s
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Create conditional tests4m 39s
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Use while loops2m 11s
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Use for loops3m 11s
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Use loops with arrays2m 5s
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4. Objects and OOP
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Everything is an object2m 21s
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Everything is a class4m 3s
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Extend classes2m 7s
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5. Beyond Programming
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Debug problems2m 50s
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Conclusion
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Next steps1m 19s
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Video: Build compound conditional tests