VLAZ
Pet peeves:
- Using
.map()
(or any other array iteration method like.filter
, etc), in JavaScript for simply going through the array instead of.forEach() or a loop
. 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.for
,for..in
,for..of
,while
,do..while
loops if the problem can't (or doesn't need to) fit into one of the above.- Using regular expressions when you need "something with text" instead of parsing, simple string manipulation, or basic arithmetic, and so on.
- Generating DOM content as a string of HTML.
- Explanations that say "This works fine" and then proceed to show a problem thus proving it doesn't work "fine".
- Unformatted code.
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