I am in the process of developing a brand new widget where we are incorporating a unique feature that displays the number of CSS files included within an HTML page.
Our team requires the count and names of all CSS files utilized on the webpage.
While I am still learning Angular, I have been informed that this task can be accomplished through directives, although I am unsure of the specific steps to take.
Your assistance would be greatly appreciated. Thank you in advance!
Have you already implemented Angular in your application? If so, the following jQuery code can help handle this task smoothly:
var stylesheets = []
$('head link[type="text/css"]').each(function(){
stylesheets.push($(this).attr("href"));
});
console.log("List of CSS files:" + stylesheets.join());
console.log("Total number of CSS files:" + stylesheets.length);
Utilizing angular framework:
.directive('cssCounter', ['$document', function($document) {
function filterCSSLinks(link) {
return link.type === 'text/css' || link.rel === 'stylesheet';
}
function updateScopeWithCssNames(scope, document) {
var links = document[0].querySelectorAll('link');
var linksArray = Array.prototype.slice.call(links, 0);
var cssLinks = linksArray.filter(filterCSSLinks);
var cssNames = cssLinks.map(function(cssLink) {
return cssLink.href;
});
scope.cssFiles = cssNames;
}
return {
link: updateScopeWithCssNames,
template: '<p>Number of CSS files: {{cssFiles.length}}<ul><li ng-repeat="c in cssFiles">{{c}}</li></ul></p>'
};
}]);
An illustrative plunker can be accessed via the following link: http://plnkr.co/edit/TqNAOKw4biyA7akdHfa4
If you want to achieve this without relying on any external libraries, here is the way to go:
let allLinks = document.querySelectorAll('link');
let linksArray = Array.prototype.slice.call(allLinks, 0);
let cssStylesheets = linksArray.filter(function(link){return link.type === 'text/css';});
let cssFileNames = cssStylesheets.map(function(stylesheet){return stylesheet.href;});
let totalNumberOfCSSFiles = cssFileNames.length;
console.log("Total number of CSS files and their names:", totalNumberOfCSSFiles, cssFileNames);
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