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A generator function uses the yield keyword to generate results and maintain its state even after returning so that the next time when it is called it can resume immediately from the last yield run. Each call to the generator function will send a value back to the caller.Following is the code for the Generator function in JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 18px; font-weight: 500; } JavaScript ... Read More
HTML stands for Hyper Text Markup Language, which is the most widely used language on Web to develop web pages. HTML was created by Berners-Lee in late 1991 but "HTML 2.0" was the first standard HTML specification which was published in 1995. HTML 4.01 was a major version of HTML and it was published in late 1999. However, HTML 4.01 version is widely used but currently we are having HTML-5 version, which is an extension to HTML 4.01, and this version published in 2012.To learn HTML, refer HTML tutorial. It explains the below given HTML concepts perfectly:HTML Basic TagsElementsAttributesHTML Phrase ... Read More
The JavaScript DataView allows us for reading and writing in multiple number types in binary ArrayBuffer by providing a low level interface. We cannot manipulate ArrayBuffer directly without using DataView().Following is the code for implementing JavaScript DataView −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 20px; font-weight: 500; } JavaScript DataView() CLICK HERE Click on the above button to change the array buffer contents using DataView() ... Read More
Height is the vertical measurement of the container, for example, height of a div.Line-height is a CSS property to specify the line height i.e. the distance from the top of the first line of text to the top of the second. It is the space between the lines of two paragraphs.ExampleYou can try to run the following code to learn the difference between height and line height:Live Demo .height { height: 20px; } .lheight ... Read More
The cursor property is sets or returns the cursor type that will be displayed for the cursor property.Following is the code for implementing JavaScript Cursor property −Example Live Demo body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } JavaScript Cursor property Hover the mouse over the above paragraph after clicking the below button Change Cursor let sampleEle = document.querySelector(".sample"); document.querySelector(".Btn").addEventListener("click", () => { sampleEle.style.cursor = "crosshair"; }); OutputOn clicking the “Change Cursor” button −
The Array.from() creates a new array object from a given array instance.Following is the code for the array from() function −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 20px; font-weight: 500; } JavaScript Array from() example CLICK HERE Click on the above button to create the array from given string let fillEle = document.querySelector(".sample"); let arr = "HelloWorld"; fillEle.innerHTML = arr; document.querySelector(".Btn").addEventListener("click", () => { fillEle.innerHTML = Array.from(arr); }); OutputOn clicking the “CLICK HERE” button the string will convert into array as follows −
The findIndex() function in JavaScript returns the index of the first element value that satisfy a given condition in an array.Following is the code for the array find() function −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .findIndex { font-size: 20px; font-weight: 500; } JavaScript Array FindIndex() example CLICK HERE Click on the above button to get the index of lion in the array function findLion(animal) { return ... Read More
The JavaScript Array.isArray() method is used to check if an object is an array or not.Following is the code for the Array.isArray() method −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 20px; font-weight: 500; } JavaScript Array isArray() CLICK HERE Click on the above button to check if the above object is an array or not let fillEle = document.querySelector(".sample"); let arr = ["cow", "bull", ... Read More
The JavaScript array.includes() method is used to check if an array contains a given element or not.Following is the code for the array.includes() method −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 20px; font-weight: 500; } JavaScript Array includes() CLICK HERE Click on the above button to check if the array contains lion element or not let fillEle = document.querySelector(".sample"); let arr = ["cow", "bull", "lion", "tiger", "sheep"]; fillEle.innerHTML = arr; document.querySelector(".Btn").addEventListener("click", () => { fillEle.innerHTML = "Lion is present in array: " + arr.includes("lion"); }); OutputOn clicking the “CLICK HERE” button −
The JavaScript focus() method is used for focusing on an element only if the element can be focused.Following is the code for the JavaScript Focus() Method −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 18px; font-weight: 500; } JavaScript focus() CLICK HERE Click on the above buttons to focus the input field let sampleEle = document.querySelector(".sample"); document.querySelector(".Btn").addEventListener("click", () => { sampleEle.focus(); }); OutputOn clicking the “CLICK HERE” button −