we need JavaScript libraries: pdf.js: “https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.12.313/pdf.min.js” pdf-lib: “https://unpkg.com/pdf-lib@1.3.0” //This library helps to delete pages. downloadjs: “https://unpkg.com/downloadjs@1.4.7” //use for download attachment…
querySelector document.querySelector(CSS Selector) querySelectorAll document.querySelectorAll(CSS Selector) querySelector() The querySelector() method returns the first Element within the document that matches the…
length // it is a property toLowerCase() toUpperCase() Includes() startsWith() endsWith() search() match() indexOf() lastIndexOf() replace() trim() charAt() charCodeAt() fromCharCode()…
DOM is such a technology with the help of which we can completely control any html document with JavaScript. With…