3Blue1Brown: Essence of Linear Algebra (2024)

'); $(document.body).append('

loading reading lists ...

'); function adjustReadingListIcon(isInReadingList){ $readingListToggle.toggleClass("fa-plus", !isInReadingList); $readingListToggle.toggleClass("fa-check", isInReadingList); var tooltipMessage = isInReadingList ? "edit in reading lists" : "add to reading list"; $readingListToggle.attr("title", tooltipMessage); $readingListToggle.attr("data-original-title", tooltipMessage); } $.ajax({ url: "/readingList/isInReadingList", data: { productId: 1262 } }).done(function (data) { adjustReadingListIcon(data && data.hasProductInReadingList); }).catch(function(e){ console.log(e); adjustReadingListIcon(false); }); $readingListToggle.on("click", function(){ if(codePromise == null){ showToast() } loadCode().then(function(store){ store.requestReadingListSpecificationForProduct({ id: window.readingListsServerVars.externalId, manningId: window.readingListsServerVars.productId, title: window.readingListsServerVars.title }); ReadingLists.ReactDOM.render( ReadingLists.React.createElement(ReadingLists.ManningOnlineReadingListModal, { store: store, }), document.getElementById("reading-lists-modal") ); }).catch(function(e){ console.log("Error loading code reading list code"); }); }); var codePromise var readingListStore function loadCode(){ if(codePromise) { return codePromise } return codePromise = new Promise(function (resolve, reject){ $.getScript(window.readingListsServerVars.libraryLocation).done(function(){ hideToast() readingListStore = new ReadingLists.ReadingListStore( new ReadingLists.ReadingListProvider( new ReadingLists.ReadingListWebProvider( ReadingLists.SourceApp.marketplace, getDeploymentType() ) ) ); readingListStore.onReadingListChange(handleChange); readingListStore.onReadingListModalChange(handleChange); resolve(readingListStore); }).catch(function(){ hideToast(); console.log("Error downloading reading lists source"); $readingListToggle.css("display", "none"); reject(); }); }); } function handleChange(){ if(readingListStore != null) { adjustReadingListIcon(readingListStore.isInAtLeastOneReadingList({ id: window.readingListsServerVars.externalId, manningId: window.readingListsServerVars.productId })); } } var $readingListToast = $("#reading-list-toast"); function showToast(){ $readingListToast.css("display", "flex"); setTimeout(function(){ $readingListToast.addClass("shown"); }, 16); } function hideToast(){ $readingListToast.removeClass("shown"); setTimeout(function(){ $readingListToast.css("display", "none"); }, 150); } function getDeploymentType(){ switch(window.readingListsServerVars.deploymentType){ case "development": case "test": return ReadingLists.DeploymentType.dev; case "qa": return ReadingLists.DeploymentType.qa; case "production": return ReadingLists.DeploymentType.prod; case "docker": return ReadingLists.DeploymentType.docker; default: console.error("Unknown deployment environment, defaulting to production"); return ReadingLists.DeploymentType.prod; } } }); } });