LinkedIn principal author Doug Winnie explains how programmers and programming languages manage variable types. Some language dynamically type the variables, changing the type of the variable based on whatever is assigned to it, while others attempt automatic conversion, or a programmer has to explicitly convert a value in code.
- As you program, you'll be working with values…of all kinds, but often you'll find…that things won't match up,…and you'll need to juggle different…variable types to get your code to work.…There are different ways that programming languages…manage differences between value types.…Some are automatic, and some you have to do yourself.…Here are some common instances that might happen.…With some languages, the variables are dynamically typed,…meaning that they adjust to whatever is assigned to them.…
So a variable that at one time is typed…as an unsigned integer can become a string…if one is assigned to it.…Another instance is when a value…doesn't match the variable type.…Some languages may automatically convert that…to the best it can to match the variable type.…For instance, an integer is converted to a decimal,…a decimal is converted to a string,…or a string containing numbers is converted to a decimal.…But sometimes you as the programmer need…to make the conversion explicit.…
With some programming languages, you need to manually…
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: Manage different variable types