{"version":"1.0","provider_name":"JassWeb","provider_url":"https:\/\/jassweb.com\/solved","author_name":"Kirat","author_url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/","title":"[Solved] Objective-C - iOS - Singleton explanation [closed] - JassWeb","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"rjLAKOzj4I\"><a href=\"https:\/\/jassweb.com\/solved\/solved-objective-c-ios-singleton-explanation-closed\/\">[Solved] Objective-C &#8211; iOS &#8211; Singleton explanation [closed]<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/jassweb.com\/solved\/solved-objective-c-ios-singleton-explanation-closed\/embed\/#?secret=rjLAKOzj4I\" width=\"600\" height=\"338\" title=\"&#8220;[Solved] Objective-C &#8211; iOS &#8211; Singleton explanation [closed]&#8221; &#8212; JassWeb\" data-secret=\"rjLAKOzj4I\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/jassweb.com\/solved\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"[ad_1] The main difference between a Singleton and a Class with a bunch of Class methods is that the Singleton can preserve some kind of state. For example, an array of data or some boolean flags. By calling sharedInstance, you access to the one and only instance of this class, that is being kept alive(and ... Read more"}