redblobgames

    const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
    const pixels = imageData.data;
    for (let i = 3, n = canvas.width * canvas.height * 4; i < n; i += 4) {
        pixels[i] = pixels[i] < 127? 0 : 255
    }
    ctx.putImageData(imageData, 0, 0);

timdown

var trimCanvas = (function() {
    function rowBlank(imageData, width, y) {
        for (var x = 0; x < width; ++x) {
            if (imageData.data[y * width * 4 + x * 4 + 3] !== 0) return false;
        }
        return true;
    }

    function columnBlank(imageData, width, x, top, bottom) {
        for (var y = top; y < bottom; ++y) {

fgilio

/*
 * Handling Errors using async/await
 * Has to be used inside an async function
 */
try {
    const response = await axios.get('https://your.site/api/v1/bla/ble/bli');
    // Success 🎉
    console.log(response);
} catch (error) {
    // Error 😨

bcardiff

INTRODUCTION TO PROGRAMMING FOR THE VISUAL ARTS WITH P5.JS

Assignment 1: Port an Image to Code

alana314

//Now with less jquery
//1) go to your my-list page, and scroll to the bottom to make sure it's all loaded:
//http://www.netflix.com/browse/my-list

//2) Next, paste this in your developer tools console and hit enter:
[...document.querySelectorAll('.slider [aria-label]')].map(ele => ele.getAttribute('aria-label'))
//or use this to copy the list to your clipboard:
copy([...document.querySelectorAll('.slider [aria-label]')].map(ele => ele.getAttribute('aria-label')))

clafferty-powa

// For input image where information is only stored in alpha channel over black RGB.
// Make all pixels with transparency black, and remove alpha channel.

    private Bitmap AlphaToBlack(Bitmap image) {
        Bitmap rgbImage = image.copy(Bitmap.Config.ARGB_8888, true);
        
        for (int y = 0; y < rgbImage.getHeight(); y++) {
        	for (int x = 0; x < rgbImage.getWidth(); x++) {
        		int aPixel = rgbImage.getPixel(x, y);
        		if (rgbImage.getPixel(x, y) < 0xFF000000)

impressiver

<!-- Raven.js Config -->
<script src="{{ JS_PATH }}/lib/raven.js" type="text/javascript"></script>
<script type="text/javascript">
// Ignore list based off: https://gist.github.com/1878283
var ravenOptions = {
  // Will cause a deprecation warning, but the demise of `ignoreErrors` is still under discussion.
  // See: https://github.com/getsentry/raven-js/issues/73
  ignoreErrors: [
    // Random plugins/extensions
    'top.GLOBALS',

remy

// MIT http://rem.mit-license.org

function trim(c) {
  var ctx = c.getContext('2d'),
    copy = document.createElement('canvas').getContext('2d'),
    pixels = ctx.getImageData(0, 0, c.width, c.height),
    l = pixels.data.length,
    i,
    bound = {
      top: null,