- Images posted instead of text.
.map()(or any other array iteration method like
.forEach()or a loop`. In general, use the array methods for their purpose:
.map- I have an array, I need another array where each item is based on the first one
.mapbut 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
.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
do..whileloops if the problem can't (or doesn't need to) fit into one of the above
- Using regular expressions for doing "something with text" instead of parsing, simple string manipulation, basic arithmetic, etc.
- Generating code as string
- XY problems
- "Quotes that are not quotes"
- Unformatted code
This user hasn’t posted yet.