Javascript Articles - Page 469 of 534

Use the Number() method in JavaScript to convert to Number. You can try to run the following code to learn how to convert 0 to Number in JavaScript −ExampleLive Demo           Convert 0 to Number                var myVal = 0;          document.write("Number: " + Number(myVal));          

To get the querystring of the href attribute of an area, use the search property. You can try to run the following code to search the querystring −Example                                                var x = document.getElementById("myarea").search;          document.write("Querystring: "+x);          

To set the background in JavaScript, use the background property. It allows you to set the background color, image, position, etc.ExampleYou can try to run the following code to learn how to set all the background properties in a single declaration with JavaScript.Live Demo           Click to Set background                function display() {             document.body.style.background = "url('https://www.tutorialspoint.com/html5/images/html5-mini-logo.jpg') repeat right top";          }          

To get the pathname part of the href attribute of an area in JavaScript, use the pathname property.ExampleYou can try to run the following code to display the pathname part.                                                var x = document.getElementById("myarea").pathname;          document.write("Pathname: "+x);          

In this tutorial, we will learn how to set the width of the left border with JavaScript. The border property specifies the boundary of an element. It specifies the border style, border-color values, and also border-width. One, two, or three of the values can be used to specify the border attribute. The sequence of the values is irrelevant. The border shorthand comes in handy when you want all four borders to be the same. To differentiate them, employ the longhand border-color, and other attributes like border style and width, which take distinct values for each side. Alternatively, you may use ... Read More

In this tutorial, we will discover how to get the port number of the href attribute of an area in JavaScript. An area is a tag in JavaScript. This tag is written as . This tag denotes an area inside an image map. This tag has no closing tag. So in HTML, this is an empty tag. In XHTML, this tag must be closed correctly. An image map is also another tag. This tag is written as . An image map contains an image with clickable or active areas. The area tag comes inside the map tag. This tag ... Read More

A number representing positive infinity is called infinity. -Infinity stands for the opposite of infinity. When a number exceeds its maximum value, it enters infinity: 1.797693134862315E+308. When an integer crosses its lower bound, it enters infinity: -1.797693134862316E+308. The universal object has the quality of infinity and is a variable with a global scope, in other words. The number is the beginning value of Infinity. A Boolean value in JavaScript may either be true or false. Users can use the Boolean function to know if something is "true" or "false". Booleans can be kept track of and modified over time by ... Read More

To search the alternate (alt) text of an image-map area in JavaScript, use the alt property. You can try to run the following code to get the alternate text.Example                                                      var x = document.getElementById("myarea").alt;          document.write("Alternate Text: "+x);          

To search the value of the type attribute of a link in JavaScript, use the type property. You can try to run the following code to get the value of type attribute.Example           Qries                var x = document.getElementById("qriesid").type;          document.write("Value of the type attribute: "+x);          

Use window.outerWidth and window.outerHeight event in JavaScript to get the size of windows when the browser is resized.ExampleYou can try to run the following code to work with events to check the browser window size −                    function resizeFunction() {             var val = "Window Width=" + window.outerWidth + ", Window Height="             + window.outerHeight;             document.getElementById("test").innerHTML = val;          }                     Resize browser window and check the window (browser window)       height and width again.