• 2 Posts
  • 9 Comments
Joined 2 years ago
Cake day: July 22nd, 2023
  • fool@programming.devtoProgrammer Humor@programming.dev•How should I increment an int?
    10·
    22 days ago

    First, imagine a number in JavaScript. (Bit of a nail biter here, huh?)

    let i = 5

    Then, we will construct an incrementor. This is really simple: here is the method.

    1. Make a bracket-string-centric version of eval().
    []["filter"]["constructor"]("return i+1")()
    1. Reconstruct stringy eval() by using +[] as 0, +!+[] as 1, and implicit conversions as ways to create strings. For example, ‘false’ is (![]+[]), so ‘f’ is (![]+[])[+[]].
    [][
  (![] + [])[+[]] + // f
  ([![]] + [][[]])[+!+[] + [+[]]] + // i
  (![] + [])[!+[] + !+[]] + // l
  (!![] + [])[+[]] + // t
  (!![] + [])[!+[] + !+[] + !+[]] + // e
  (!![] + [])[+!+[]] // r
][
  ([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+ // c
  (!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+ // o
  ([][[]]+[])[+!+[]]+ // n
  (![]+[])[!+[]+!+[]+!+[]]+ // s
  (!![]+[])[+[]]+ // t
  (!![]+[])[+!+[]]+ // r
  ([][[]]+[])[+[]]+ // u
  ([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+ // c
  (!![]+[])[+[]]+ // t
  (!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+ // o
  (!![]+[])[+!+[]] // r
]("return i+1")()
    1. Draw the rest of the fucking owl. Final code:
    let i = 5; // haha yay

[][
  (![] + [])[+[]] + // f
  ([![]] + [][[]])[+!+[] + [+[]]] + // i
  (![] + [])[!+[] + !+[]] + // l
  (!![] + [])[+[]] + // t
  (!![] + [])[!+[] + !+[] + !+[]] + // e
  (!![] + [])[+!+[]] // r
][
  ([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+ // c
  (!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+ // o
  ([][[]]+[])[+!+[]]+ // n
  (![]+[])[!+[]+!+[]+!+[]]+ // s
  (!![]+[])[+[]]+ // t
  (!![]+[])[+!+[]]+ // r
  ([][[]]+[])[+[]]+ // u
  ([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+ // c
  (!![]+[])[+[]]+ // t
  (!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+ // o
  (!![]+[])[+!+[]] // r
](
  (!![]+[])[+!+[]]+ // r
  (!![]+[])[!+[]+!+[]+!+[]]+ // e
  (!![]+[])[+[]]+ // t
  ([][[]]+[])[+[]]+ // u
  (!![]+[])[+!+[]]+ // r
  ([][[]]+[])[+!+[]]+ // n
  (+[![]]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+!+[]]]+ // ' '
  ([![]]+[][[]])[+!+[]+[+[]]]+ // i
  (+(+!+[]+(!+[]+[])[!+[]+!+[]+!+[]]+[+!+[]]+[+[]]+[+[]])+[])[!+[]+!+[]]+ // +
  +!+[] // 1
)()
// no virus i swear. execute arbitrary code in your browser console.

    Anyway, that’s just everyday JS work. It’s like step 5 after resizing the button, but a bit before centering the div.

    based on this. some translation methods done differently.

  • fool@programming.devtoSelfhosted@lemmy.world•how much power does your system need?English
    313·
    1 month ago

    I forgive 'em cuz watt hours are a disgusting unit in general

    idea what unit
    speed change in position over time meters per second m/s
    acceleration change in speed over time meters per second, per second m/s/s=m/s²
    force acceleration applied to each of unit of mass kg * m/s²
    work acceleration applied along a distance, which transfers energy kg * m/s² * m = kg * m²/s²
    power work over time kg * m² / s³
    energy expenditure power level during units of time (kg * m² / s³) * s = kg * m²/s²

    Work over time, × time, is just work! kWh are just joules (J) with extra steps! Screw kWh, I will die on this hill!!! Raaah