Whether is a powerful tool used to make decisions based on conditions in programming. It is expressed through a statement that evaluates an expression and decides what snippet of code should execute based on the result of the evaluation. This tutorial will guide you through basics of using whether correctly.
Table Of Content:
- Whether - English Grammar Today - Cambridge Dictionary
- The Difference between 'If' and 'Whether' | Merriam-Webster
- Using whether
- Whether or if? | English Language Help Desk
- 'If' Versus 'Whether' - Quick and Dirty Tips ™
- WHETHER (conjunction) definition and synonyms | Macmillan ...
- How to use a "clean startup" to determine whether background ...
- Weather vs. Whether – The Correct Way to Use Each | Confusing ...
- How to Use Whether with Example Sentences
- What's the Difference Between If and Whether? — In English With ...
1. Whether - English Grammar Today - Cambridge Dictionary
https://dictionary.cambridge.org/us/grammar/british-grammar/whether
5 days ago ... We use whether in indirect yes-no questions and questions with or. We can't leave out whether (or if):. They asked me whether (if) I was tired.
2. The Difference between 'If' and 'Whether' | Merriam-Webster
https://www.merriam-webster.com/words-at-play/if-vs-whether-difference-usage
If and whether are often interchangeable, but have distinct uses. For clarity, it is best to use whether in reference to a choice or alternatives ("we're ...
3. Using whether
https://www.englishgrammar.org/using-whether/
Oct 28, 2013 ... Whether is used when someone does not know which of the two possibilities is true. ... Whether … or… is often used as a double conjunction.
4. Whether or if? | English Language Help Desk
https://site.uit.no/english/grammar/whether-or-if/
Whether and if are often interchangeable, but sometimes only one of them is correct. To avoid any danger of mistake, use if to introduce a condition and ...
5. 'If' Versus 'Whether' - Quick and Dirty Tips ™
https://www.quickanddirtytips.com/articles/if-versus-whether/
The formal rule is to use if when you have a conditional sentence and whether when you are showing that two alternatives are possible. Some examples will make ...
6. WHETHER (conjunction) definition and synonyms | Macmillan ...
https://www.macmillandictionary.com/us/dictionary/american/whether
Use whether, but not if, immediately before 'or not': The question is whether or not the government has the right to interfere.
7. How to use a "clean startup" to determine whether background ...
https://support.microsoft.com/en-us/topic/how-to-use-a-clean-startup-to-determine-whether-background-programs-are-interfering-with-office-for-mac-e99e92b2-f67e-b98d-b69f-d12236c53f2c
Describes how to start your computer in Safe mode, which uses a minimal set of drivers and startup programs so that you can determine whether a background ...
8. Weather vs. Whether – The Correct Way to Use Each | Confusing ...
https://www.gingersoftware.com/english-online/spelling-book/confusing-words/weather-whether
Keep using weather instead of whether? Check out Ginger's spelling book and make sure you never confuse weather and whether again!
9. How to Use Whether with Example Sentences
http://www.englishcollocation.com/how-to-use/whether
Example sentences: "I need to decide whether I'm going to college or not." "You are going to school whether ...
10. What's the Difference Between If and Whether? — In English With ...
https://www.inenglishwithlove.com/blog/difference-between-if-and-whether
Mar 9, 2021 ... 1. Use whether after a preposition. We don't use if after prepositions. We use whether instead: We're having a conversation ...
What type of data can Whether evaluate?
Whether can evaluate comparison operations between two values, boolean values, variables, and arithmetic expressions.
How do I know if an expression is true or false?
You need to be familiar with the operators used to compare values and determine truthiness. The most common operator for determining truthiness is == which checks for equality between two values.
What syntax should I use for the different types of evaluations?
For comparison operations (like == or !=) the syntax would be something like this "expression == value". For boolean values (e.g., true/false) it would look like this "expression == true". Variables are usually evaluated using "if (variable)" and arithmetic expressions using "(expression) > 5".
What happens if the expression evaluates to false?
In that case, you can use an else statement so that some other code snippet gets executed if the expression evaluates to false.
Conclusion:
To be successful in writing efficient code with whether, it is important to first understand how comparison operations work and how they can be used in various scenarios. Also it is essential to become familiar with operators used to determine truthiness as well as different types of syntax associated with various types of evaluations (variables, Boolean values etc). Knowing these concepts will improve your ability to write better code using whether statements!
