25 Matching Annotations
  1. Jan 2021
    1. https://github.com/sveltejs/svelte/issues/1037#issuecomment-737872461

      Explanation (from https://github.com/sveltejs/svelte/issues/1037#issuecomment-739458005):

      @AlexGalays register is an action created and passed in from the parent node (Wrapper) which allows the child to register with it. Not builtin to svelte.

      That's very clever @PatrickG. Nice one. I was a bit confused when first looking at it to understand what was going on, but I think that will be a handy tool in the toolbox.

      But why do we need this? If we remove all use:register, it still toggles just fine. Seems the only benefit is that this allows cleanup.

  2. Dec 2020
    1. This creates an options object with a getter function for the passive property; the getter sets a flag, passiveSupported, to true if it gets called. That means that if the browser checks the value of the passive property on the options object, passiveSupported will be set to true; otherwise, it will remain false. We then call addEventListener() to set up a fake event handler, specifying those options, so that the options will be checked if the browser recognizes an object as the third parameter.
  3. Oct 2020
  4. Sep 2020
    1. Some Svelte component's allow you to bind to internal data which doesn't make too much sense outside of Svelte yet they often form an important part of the API. Instead I have added the option to use a watch* prop (similar to the on* prop). This also takes a callback function and recieves the value you wish to watch as its only argument. watchNumber={ n => setCount(n) } would watch the internal value number, when number changes the callback you passed to it would be executed receiving the new number value as its only argument. This may seem strange but many Svelte components are written to make use of this bind syntax, without it there is often a hole in the API leaving you unable to respond to internal state changes. You will probably want to control your state with React, this watch* prop is an escape hatch that allows you to pull out those internal values to use however you wish.
  5. Aug 2020
    1. Safari sends following order application/xml (q is 1) application/xhtml+xml (q is 1) image/png (q is 1) text/html (q is 0.9) text/plain (q is 0.8) \*/\* (q is 0.5) So you visit www.myappp.com in safari and if the app supports .xml then Rails should render .xml file. This is not what user wants to see. User wants to see .html page not .xml page.
  6. Jul 2020
    1. JSON parsing is always pain in ass. If the input is not as expected it throws an error and crashes what you are doing. You can use the following tiny function to safely parse your input. It always turns an object even if the input is not valid or is already an object which is better for most cases.

      It would be nicer if the parse method provided an option to do it safely and always fall back to returning an object instead of raising exception if it couldn't parse the input.

  7. May 2020
  8. Apr 2020
  9. Mar 2020
  10. Feb 2020
  11. Jan 2020
  12. Dec 2019
  13. Nov 2019
  14. developer.mozilla.org developer.mozilla.org