It's not a store of "keys or values", no. It's a store of key-value pairs.

▲ VerifiedReports 2 days ago | parent [-]

A key-value store would be a store of one thing: key values. A hyphen combines two words to make an adjective, which describes the word that follows:

  A used-car lot

  A value-added tax

  A key-based access system

When you have two exclusive options, two sides to a situation, or separate things; you separate them with a slash:

  An on/off switch

  A win/win situation

  A master/slave arrangement

Therefore a key-value store and a key/value store are quite different.

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kqr 2 days ago | parent [-]

All of your slash examples represent either–or situations. A swich turns it on or off, the situation is a win in the first outcome or a win in the second outcome, etc.

It's true that key–value store shouldn't be written with a hyphen. It should be written with an en dash, which is used "to contrast values or illustrate a relationship between two things [... e.g.] Mother–daughter relationship"

https://en.wikipedia.org/wiki/Dash#En_dash

I just didn't want to bother with typography at that level of pedanticism.

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VerifiedReports a day ago | parent [-]

No, they don't. A master/slave configuration (of hard drives, for example) involves two things. I specifically included it to head off the exact objection you're raising.

"...the slash is now used to represent division and fractions, as a date separator, in between multiple alternative or related terms"

-Wikipedia

And what is a key/value store? A store of related terms.

And if you had a system that only allowed a finite collection of key values, where might you put them? A key-value store.

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kqr a day ago | parent [-]

The hard drives are either master or slave. A hard drive is not a master-and-slave.

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VerifiedReports a day ago | parent [-]

Exactly. And an entry in a key/value store is either a key or a value. Not both.

	▲	kqr a day ago \| parent [-]
		No, an entry is a key-and-value pair. Are you deriously suggesting it is possible to add only keys without corresponding values, or vice versa?