Bump mem from 4.3.0 to 6.1.0

[dependabot-preview]

Bumps mem from 4.3.0 to 6.1.0.

Release notes

Sourced from mem's releases.

v6.1.0

• Automatically use WeakMap when possible (#56) e8bb86c

sindresorhus/memoize@v6.0.1...v6.1.0

v6.0.1

• Support overloaded functions (TypeScript types) (#48) 809697d009059bf177c0d556009eaee121dc2ef6

v6.0.0

Breaking

• Simplify the default cacheKey (#43) b7a0766 It now defaults to cacheKey: x => x instead of the much more complicated previous default. This means it will now only cache the first argument, and only if it's a primitive. Previously, it tried to cache all arguments using JSON.stringify(), but this was both error-prone and slow. This change makes the memoization logic very straightforward, explicit and fast by default. See the readme for how to handle multi-argument or non-primitive value situations.
• Drop the cachePromiseRejection option (#43) b7a0766 It was not a good fit for mem and we plan to add it to p-memoize instead (sindresorhus/p-memoize#11), which is like mem, but focused on promises. If you depend on this option, you should stay on mem v5 until sindresorhus/p-memoize#11 is resolved.
• Throw when .clear() is called with a non-memoized function (#44) c73c23b

sindresorhus/memoize@v5.1.1...v6.0.0

v5.1.1

• Always use an object for the cache item to match expectations and the TypeScript definitions (#42) 1f38c3e

sindresorhus/memoize@v5.1.0...v5.1.1

v5.1.0

Enhancements:

• Minor performance optimization (#39) c098182

sindresorhus/memoize@v5.0.0...v5.1.0

v5.0.0

Breaking:

• Require Node.js 8 e54b59b
• Change the default value of the cachePromiseRejection option to true (#36) 70707ae We decided it's better to default to the least surprising/magic behavior.

Breaking for TypeScript users:

• Only use a CommonJS export for the TypeScript definition You need to change import mem from 'mem'; to import mem = require('mem');

Enhancements:

• Cache function reference when it's a single argument (#35) 10f13c0

sindresorhus/memoize@v4.3.0...v5.0.0

Commits

• 4646f00 6.1.0
• e8bb86c Automatically use WeakMap when possible (#56)
• 9d2d607 Improve documentation about custom keys (#55)
• 9d5661e 6.0.1
• 809697d Support overloaded functions (TypeScript types) (#48)
• b154f53 6.0.0
• 3291490 Meta tweaks
• b7a0766 Simplify default serializer; drop promise-related option (#43)
• c73c23b Throw when .clear() is called with a non-memoized function (#44)
• 0ca0b20 5.1.1
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #219.