10 examples of 'jquery remove background color' in JavaScript

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240function hideBackgroundColor(bool) {
241 if (bool) {
242 $('.overlay').find('div').css('background-color', '');
243 }
244}
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30function replaceColor(img, color) {
31 let { width, height, data: imgd } = img;
32 let rgba = rgbaRegex.exec(color);
33 let cred, cgreen, cblue, calpha;
34 if (rgba) {
35 cred = parseInt(rgba[1], 10);
36 cgreen = parseInt(rgba[2], 10);
37 cblue = parseInt(rgba[3], 10);
38 calpha = Math.round(parseFloat(rgba[4]) * 255);
39 }
40 else {
41 cred = parseInt(color.substr(1, 2), 16);
42 cgreen = parseInt(color.substr(3, 2), 16);
43 cblue = parseInt(color.substr(5, 2), 16);
44 calpha = parseInt(color.substr(7, 2), 16) || 0xff;
45 }
46 if (calpha === 0xff) {
47 for (var i = 0; i < imgd.length; i += 4) {
48 // Horrible workaround for imprecisions due to browsers using premultiplied alpha internally for canvas
49 let red = imgd[i];
50 if (red === imgd[i + 1] && red === imgd[i + 2] && (red === 0x80 || imgd[i + 3] < 0xff && red > 0x70)) {
51 imgd[i] = cred;
52 imgd[i + 1] = cgreen;
53 imgd[i + 2] = cblue;
54 }
55 }
56 }
57 else {
58 for (var i = 0; i < imgd.length; i += 4) {
59 let red = imgd[i];
60 let alpha = imgd[i + 3];
61 if (red === imgd[i + 1] && red === imgd[i + 2] && (red === 0x80 || alpha < 0xff && red > 0x70)) {
62 if (alpha === 0xff) {
63 imgd[i] = cred;
64 imgd[i + 1] = cgreen;
65 imgd[i + 2] = cblue;
66 imgd[i + 3] = calpha;
67 }
68 else {
69 alpha = alpha * (1.0 / 255);
70 imgd[i] = Math.round(cred * alpha);
71 imgd[i + 1] = Math.round(cgreen * alpha);
72 imgd[i + 2] = Math.round(cblue * alpha);
73 imgd[i + 3] = Math.round(calpha * alpha);
74 }
75 }
76 }
77 }
78}
55function setColor ( element )
56{
57 // set background
58 element.setBackgroundColor ( getBackgroundStyle ( data ) );
59}
61function checkBackgroundColor(elemID) {
62 var foo = window.getComputedStyle(document.getElementById(elemID)).backgroundColor;
63 return window.getComputedStyle(document.getElementById(elemID)).backgroundColor;
64}
290function setBackgroundStyles(image_url){
291 if (typeof image_url === 'string')
292 _currentImageURL = image_url;
293 else if (typeof _currentImageURL !== 'string')
294 return;
295 let url = _currentImageURL.replace(/"/g, '%22'),
296 styles = '#image{background-image:url("'+url+'");background-size:'+settings.crop+'}';
297 if (settings.crop === 'contain'){
298 $imageGhost.css('opacity','');
299 styles += '#image-ghost{display:block;background-image:url("'+url+'")}';
300 }
301
302 $style.html(styles);
303}
43function setBackground(e) {
44 var myHTML = document.querySelector('html');
45 myHTML.style.backgroundImage = "url('" + e.target.src + "')";
46}
29function removeCss(document: Document, ref: number) {
30 if (injectedCache[ref] == null) {
31 return;
32 }
33 const head = getHead(document);
34 head.removeChild(injectedCache[ref]);
35 delete injectedCache[ref];
36}
91function removeAllElementClass(className){
92 $("."+className, window.parent.document).removeClass(className);
93}
5export function removeElement(domSelector) {
6 $(domSelector).remove();
7}
77function calculateColorBackground(color) {
78 // Converts HEX to YIQ to judge what color background the color would look best on
79 color = color.replace(/[^0-9a-f]/gi, '');
80 if (color.length < 6) {
81 color = color[0] + color[0] + color[1] + color[1] + color[2] + color[2];
82 }
83
84 const r = parseInt(color.substr(0, 2), 16);
85 const g = parseInt(color.substr(2, 2), 16);
86 const b = parseInt(color.substr(4, 2), 16);
87 const yiq = ((r * 299) + (g * 587) + (b * 114)) / 1000;
88 return yiq >= 128 ? 'dark' : 'light';
89}

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