VLAZ
To be, or not to be, that is the question
Translating it into code, we get
theQuestion = 2b || !2b
This returns true
for any value of 2b
, making the evaluation redundant. We can optimise it by removing the expression and substituting with the result.
theQuestion = true
Pet peeves:
- Using
.map()
(or any other array method like.filter
, etc), in JavaScript for simple iteration instead of.forEach()
. In general, use the array methods for their purpose:.map
- I have an array, I another array where each item is based on the first one.flatMap
- like.map
but I use it when each new item also an array.filter
- I have an array, I need less of it.find
- I have an array, I need one item from it.findIndex
- I have an array, I need the index of an item.some
- I have an array, I need to check if at least one item passes a check.every
- I have an array, I need to see if all items pass a check.forEach
- I have an array, I need to do something with each item. Usually I don't want to return anything..reduce
/.reduceRight
- I have an array, I need to make it into "one value". I'll have to check if I really need to use reduce for this.
- Using regular expressions when you need "something with text" instead of parsing, simple string manipulation, or basic arithmetic, and so on.
- Unformatted code.
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