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JOHN SWANA

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Get current url port, hostname and path in JavaScript

window.location is an Object with properties of current location namely window.location.href  returns the href url of the current page window.location.hostname  returns the domain name window.location.pathname  returns the pathname segment of the url window.location.protocol  returns the web protocol of the url window.location.assign ()  loads a new document
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Rest operator in JavaScript

Rest operator is similar to spread operator its an es6 feature that allows converting arguments to an array of values; Syntax of spread operator is as follows; function spr(...params) { console.log(params) } spr(1,2,3) // [1, 2, 3] You can use rest operator among other arguments function sprr(args, ...params) { console.log(params) } spr('foo', 1, 2, 3) // [1, 2, 3] More information: Rest parameters MDN
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How to draw clouds on HTML5 Canvas

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So basically clouds are shapes with a flat bottom and 3 curves on top (two on the sides on bigger one on the middle) As i was creating a JS13K Game i wondered around googling if i'd find something as simple as that and 'i couldn't find anything interesting So i took some pictures of simple animated clouds and sketched it on my notepad trying to reverse engineer shapes in the figure In my first attempt i discovered that "the base is something similar to css pills, so there's rectangular shape with roundish edges and a circle overlay on top". Putting that into vanilla JavaScript i resorted to creating two canvases 1. foreground layer 2. background layer Clouds are drawn using a solid color formed by four shapes 3 circles and a rectangle then using some alpha the resultant image is then overlay-ed onto the primary canvas. Here's an example It's a sneaky way todraw clouds so they got to be a cleanway todo this without Jumping extra hoops Last reso...
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Snake monochrome (JS1024)

JS1024 is an annually held code golfing competition where you're basically required to create something creative in 1024 bytes or less of raw "JavaScript/HTML/WebGL" I participated for JS1024 2020 competition with my First entry titled "Snake monochrome" Originally inspired by the old Nokia game going by the same name "Snake" which i used to play as far back as 2007-2008 Another entry making it Second is named "Tetris monochrome" i was compiled to do this game as a dare from my Girlfriend on June 6 the "Tetris 1984" anniversary Third one is F1-racer it's inspired by my bestfriend who wasn't impressed with how i hooked up controls on "Tetris Monochrome" so he requested "i modify controls a bit", and i improved "input/output" by adding smooth touch input to it as requested Snake game contains two entities. The Snake and the Apple, the Snake is an Object with properties position (vect...
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With statement in JavaScript

JavaScript 'with statement' is a simplified way to access object properties as variables. Take for instance; const dog = "puppy" const mascots = {     'tux': "tuxedo",     'cow': 'cow' } with(mascots) {     console.log(tux)     // tuxedo     console.log(cow)     // cow     console.log(dog)     // puppy } properties of mascots are converted to variables accessible within the with block 'dog' is not part of mascots and as a fallback, dog global is returned. At the time of writing this post with statement is discouraged. It's not allowed in 'safe mode' With the above sample you can do the same thing using destructureing operator const {cow, dog, tux} = mascots console.log(tux) // tuxedo console.log(cow) // cow console.log(dog) // puppy
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