Web Development Articles

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How Is Infinity converted to Boolean in JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 622 Views

In JavaScript, Infinity and -Infinity are special numeric values representing positive and negative infinity. When converting these values to Boolean, they always evaluate to true because they are considered "truthy" values. This tutorial demonstrates three methods to convert Infinity values to Boolean in JavaScript: Using the Boolean() Method Using the Logical NOT(!) Operator Converting Infinity to String to Boolean Using the Boolean() Method The Boolean() constructor converts any value to its boolean equivalent. For Infinity and -Infinity, this method returns true since both are truthy ...

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How to get the port number part of the href attribute of an area in JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 548 Views

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 ...

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How to set the width of the left border with JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 435 Views

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 defines the border style, color, and width. To modify individual border sides, we use specific properties like borderLeftWidth for the left border. The DOM Style borderLeftWidth property allows you to set or return the width of an element's left border. Before setting the border width, ensure the element has a border style defined. Using the borderLeftWidth Property The borderLeftWidth property accepts values like "thin", "medium", "thick", or specific measurements ...

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How to get the hash part of the href attribute of an area in JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 835 Views

In this tutorial, we will learn how to get the hash part of the href attribute of an area in JavaScript. The HTML element establishes an area within an image map with predetermined clickable zones. An image map allows you to correlate geometric regions of a picture with hypertext links. This element can only be used within the element. The href property gives the area's hyperlink target. The element is not a hyperlink if the href attribute is not present. Following is a method used to get the href attribute's hash part of an ...

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How to return the background color of an element with JavaScript DOM?

Prabhdeep Singh
Prabhdeep Singh
Updated on 15-Mar-2026 4K+ Views

In this tutorial, we will explore how to get and set the background color of an element using JavaScript DOM. The style.backgroundColor property allows us to both retrieve and modify background colors dynamically. Browser Support Chrome Browser − Version 1.0 and above. Edge Browser − Version 12 and above. Internet Explorer − Version 4.0 and above. Firefox Browser − Version 1.0 and above. Safari Browser − Version 1.0 and above. Opera Browser − Version 3.5 and above. Syntax ...

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How to set the color of the top border with JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 700 Views

In this tutorial, we will learn how to set the color of the top border with JavaScript. The HTML element's outline is called the border. The border of an element can have multiple colors on each side. Different properties and methods are used to color each side of the border. To set the color of the top border with JavaScript, we have different ways − Using the style.borderTopColor Property Using the style.borderColor Property Using the style.borderTopColor Property The style.borderTopColor property of an element in JavaScript is used to ...

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How to set the shape of the border of the top-left corner with JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 407 Views

In this tutorial, we will learn to set the radius of the top-left corner of the border using JavaScript DOM. To set the shape of the border of the top-left corner in JavaScript, use the borderTopLeftRadius property. Set the border radius using this property. We apply borders on a webpage many times. Generally, it is used to display the importance of an element or a difference between the sections. We can create a table in a webpage by using HTML. It is a simple table that does not attract the user. So, we use CSS to design the table ...

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How to set border width, border style, and border color in one declaration with JavaScript?

Paul Richard
Paul Richard
Updated on 15-Mar-2026 1K+ Views

To set the border width, style, and color in a single declaration, use the border property in JavaScript. This property accepts a shorthand value that combines all three border properties. Syntax element.style.border = "width style color"; The order is: width, style, color. You can also specify individual sides using borderTop, borderRight, borderBottom, or borderLeft. Example: Setting Border with Button Click Set Border Demo Text ...

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Set whether the table border should be collapsed into a single border or not with JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 553 Views

In this tutorial, let us look at how to set whether the table border should collapse into a single table border or not with JavaScript. We can use the borderCollapse property in JavaScript to accomplish this. This property controls how table borders are displayed - either as separate borders for each cell or collapsed into a single unified border. Using the Style borderCollapse Property The borderCollapse property defines whether the table border should collapse into a single table border or separate into a double table border. The value 'separate' is the default. The borderCollapse is a read-and-write ...

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How to set the width of the bottom border with JavaScript?

Shubham Vora
Shubham Vora
Updated on 15-Mar-2026 423 Views

In this tutorial, we shall learn to set the width of the bottom border with JavaScript. To set the width of the bottom border, we can use the borderBottomWidth property in JavaScript. It allows you to change the width. Let us discuss our topic in brief. Using the borderBottomWidth Property With this property, we can set or return the width of an element's bottom border. Width is a floating point number with either a relative units designator (cm, mm, in, pt, or pc) or an absolute units designator (em, ex, or px). Syntax Following is ...

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