511–520 of 887 posts
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If you want to build is-bigger-than-5 yourself, I recommend pulling in fivejs[1] as a dependency. [1] https://github.com/jackdcrawford/five
five.js was missing something. I fixed it. https://github.com/jackdcrawford/five/pull/234
Well played.
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The equivalent in C would then be replacing #include and "-lm" with #include #include #include #include … and "-lsin -lcos -ltan -lsinh …" Which is nuts no matter what language you are coding in.
Oh, but javascript is dynamically typed, so it doesn't matter if your sin-module works with a different kind of arbitrary-precision decimal number module than your geolocation module, your cosine module or your openg-draw-triangle or opengl-draw-circle modules... /sarcasm
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> TL;DR: Small modules are easy to reason about, and encourage code reuse and sharing across the entire community. How does that even remotely applies to the "is positive integer" test, and even more so to "it's positive" and "it's integer"? What's next? is-bigger-than-5? word-starts-with-capital-letter? add-1-to-a-number?
It doesn't. Of course we have a number of packages that are truly trivial and should probably be inlined. Npm is a completely open platform. Anyone can upload any module they feel like. That doesn't mean anyone else will feel the need to use them. I think you'll find that the vast majority of small modules that are widely used are ones that also cover obscure corner cases and do benefit from widespread use and testin…
I don't see anything wrong with using a pre-made left pad function. Why waste time and lines of code implementing something so trivial when there is already a solution available? However, I agree it is ridiculous to have a dedicated module for that one function. For most nontrivial projects I just include lodash, which contains tons and tons of handy utility functions that save time and provide efficient, fast implem…
I agree that Lodash would be a better choice because it seems like a well maintained project. There could be two counter args, in theory: - if the programmer uses other functions included in Lodash his code will have a single larger point of failure. For example, if Lodash is unpublished (intentionally as in this case, or unintentionally) then the programmer will have a lot more work to redo. - Lodash introduces a lo…
Using a library like lodash makes a lot more sense once you use a module bundler that allows tree shaking (like Rollup or Webpack 2.0) along with the ES6 module syntax. Heck, even if you're just using babel with Browserify or Webpack 1.x, you can use babel-plugin-lodash [0] so it'll update your imports and you only pull in what you need.
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The difference with C is that with a good linker, functions you don't call are removed from the resulting binary (or are maybe not even in the binary if you are dynamically linking to the c runtime). With javascript however, if you import a hypothetical "math.js" instead of just "sin.js", "cos.js" or "tan.js", then you'll need to download and evaluate a whole bunch of javascript that you might not need. I'm not defen…
what you describe is the "-flto" option in GCC and I believe the equivalent in JS is donr by Google Closure compiler.
-flto, on the other hand, allows to reverse this process to allow interprocedural optimization across different translation units.
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This comes up a lot when people discuss anything related to npm modules. It's easy to simply dismiss these trivial one-line modules as "insanity" and move on, but there's actually plenty of good reasons as to why many prefer to work with multiple small modules in this manner. This GitHub comment by Sindre Sorhus (author of over 600 modules on npm) is my favorite writeup on the topic: https://github.com/sindresorhus/a…
Small modules are easy to reason about They really aren't, when I'm reading is-positive-integer(x) and wonder if 0 is positive I need to hunt down the definition of positive through two packages and as many files. And it gets wrose if both your code and one of your dependencies required 'is-positive-integer' and I have to also figure out which version each part of the code base is using. If you had written (x > 0) I…
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Perhaps another reason for this is that Javascript is inherently unsafe. By relying on these small rigorously tested libraries they are avoiding the need to test their own code, and thus avoiding basic null check or conversion errors. Other languages handle this with compilers, may be strongly typed, and/or have features that don't allow nulls. Javascript doesn't exactly have that luxury. So maybe it makes sense in J…
> basic null check What's funny to me is that leftpad(null, 6, ' ') outputs " null".
Counter-argument: A good micro-module removes complexity. It has one simple purpose, is tested, and you can read the code yourself in less than 30 seconds to know what's happening. Take left-pad, for example. Super simple function, 1 minute to write, right? Yes. But check out this PR that fixes an edge case: https://github.com/azer/left-pad/pull/1 The fact of the matter is: every line of code I write myself is a comm…
And just because some random guy didn't get something as trivial as this right the first time, doesn't mean nobody else can. Also the de facto standard library lodash already has padding utilities, made by people who have a proven track record.