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1000 results for “array”

  1. Why Object of Arrays (SoA Pattern) Beat Interleaved Arrays: A JavaScript Performance Rabbit Hole, by (not on Mastodon or Bluesky):

    royalbhati.com/posts/js-array-

    #javascript #performance #arrays

  2. Array Holes Are NOT undefined?!

    MIND BLOWN! An empty slot in an array is NOT the same as undefined. The hole doesn't exist as a property! map() SKIPS holes but processes undefined. This invisible difference will break your code!

    #javascript #javascripttricks #arrayholes #sparsearrays #undefined #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #arraymethods #advancedjavascript

    youtube.com/watch?v=gJiOuy3o34U

  3. Array Holes Are NOT undefined?!

    MIND BLOWN! An empty slot in an array is NOT the same as undefined. The hole doesn't exist as a property! map() SKIPS holes but processes undefined. This invisible difference will break your code!

    #javascript #javascripttricks #arrayholes #sparsearrays #undefined #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #arraymethods #advancedjavascript

    youtube.com/watch?v=gJiOuy3o34U

  4. Array Holes Are NOT undefined?!

    MIND BLOWN! An empty slot in an array is NOT the same as undefined. The hole doesn't exist as a property! map() SKIPS holes but processes undefined. This invisible difference will break your code!

    #javascript #javascripttricks #arrayholes #sparsearrays #undefined #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #arraymethods #advancedjavascript

    youtube.com/watch?v=gJiOuy3o34U

  5. Array Holes Are NOT undefined?!

    MIND BLOWN! An empty slot in an array is NOT the same as undefined. The hole doesn't exist as a property! map() SKIPS holes but processes undefined. This invisible difference will break your code!

    #javascript #javascripttricks #arrayholes #sparsearrays #undefined #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #arraymethods #advancedjavascript

    youtube.com/watch?v=gJiOuy3o34U

  6. Array Holes Are NOT undefined?!

    MIND BLOWN! An empty slot in an array is NOT the same as undefined. The hole doesn't exist as a property! map() SKIPS holes but processes undefined. This invisible difference will break your code!

    #javascript #javascripttricks #arrayholes #sparsearrays #undefined #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #arraymethods #advancedjavascript

    youtube.com/watch?v=gJiOuy3o34U

  7. Array.fill() Shares Same Reference?!

    This is a TRAP! Array.fill() with an object puts the SAME object in every slot. Change one, change ALL! Every element points to the same memory location. This silent mutation will destroy your data!

    #javascript #javascripttricks #array.fill #objectreference #mutationbugs #javascriptweird #javascriptquiz #codingchallenge #javascriptshorts #javascriptwtf #referencetypes #advancedjavascript

    youtube.com/watch?v=MaOk-qGi9xw

  8. Arrays and string arrays in BASIC are simple and powerful.

    I like the syntax-- A(B,C) or S$(B).

    Makes me wonder. Writing a BASIC interpreter with a strong focus on the power of DIM and array operations would be interesting.

    #retrocode #retrogame #retrogaming #basic #coding