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JOHN SWANA

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How to use fetch api submit an html form

Fetch api allows asynchronous means of reading files and a more simplified way of making http requests in JavaScript. How to submit an existing html form using fetch api; Assuming you have html source code with a form and some input fields; <form id="form" action="./submit" method="post" onsubmit="handle(event)"> <input name="query"> <button>     submit </button> </form> You can pass an instance of a dom form to formData constructor as the first parameter; const handle = function(event) {     event.preventDefault()     const data = new formData(event.target) fetch('//localhost/api/post', {     method: 'POST',     body: data }) } Fetch api returns a new pending promise to process the response you will need to await asynchronous process once ready to consume parse it as follows; .then(response => response.json()) .then(response => console.log(response))
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Tar basic commands to store and extract files

Targeted is an archiving program designed to package, store, and compress multiple files into a single portable package the name tar is an abbreviation for tape archiver Apart from creating .tar archives tar is also capable of compressing files using zip, bzip2, and gzip compression algorithms Tar flags c — compress directive x — extract directive t — tabulate contents f — specify filename z — use zip/gzip compression j — use bzip2 compression k — do not overwrite t — files from file w — ask for configuration v — verbose gzip flags d — decompress file Tar commandline commands syntax tar -{arguments} {params} Example tar commands tar -cf music.tar music.mp3 Tar archiver will be directed to compress music.mp3 into a tar archive named music.tar and save it in the current working directory tar -xf music.tar Tar will be directed to extract music.tar archive and save the constituent contents of the archive...
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FlappingBird JS13K Games

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FlappingBird is a Mobile side scroller game where the player controls a bird, attempting to fly between columns trees without hitting them Development of this game started out when i was attempting to draw perfect clouds programmatically on a canvas i later added a few more clouds (Something's missing) add moon, stars,  buildings and also add Gradients and for the games character i settled on a bird (using Sprite sheet obtained freely from opengameart) add more them and animated everything. FlappingBird is a single player arcade-style game in which the player controls the bird, which moves persistently to the right. The player is tasked with navigating the bird through pairs of trees that have equally sized gaps placed at random heights. the bird automatically gravitates and only ascends when the player taps the touchscreen or spacebar. Each successful pass through a pair of trees awards the player one point. Colliding with a tree or the ground ends the gamepl...
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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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Solutions to blocked URLs on Facebook

Facebook allows sharing links on it's platform but in order to protect it's users from accessing URLs containing malicious content Facebook on a regular scraps content on shared URLs effectively raising an alarm if content shared goes against Facebook community standards or in short it's content is forbidden on the Facebook platform, Forbidden content may include potentially malicious crafted phishing websites or websites spreading malware among others Facebook may as well ban content flagged spam either reported or flagged by Facebook moderating algorithm "Facebook sheriff" You wouldn't want to find your website 'spam-list handed' you should avoid that There's no way to redeem a website flagged as a blocked website on Facebook except other non viable alternates such as completely changing your domain or using another sub-domain Facebook may as well ban content containing banned URLs in the meta open graph attributes To resolve open-graph sha...
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