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Articles by Rama Giri
87 articles
CSMA with Collision Detection (CSMA/CD
Carrier Sense Multiple Access with Collision Detection (CSMA/CD) is a network protocol for carrier transmission that operates in the Medium Access Control (MAC) layer. It senses or listens whether the shared channel for transmission is busy or not, and defers transmissions until the channel is free. The collision detection technology detects collisions by sensing transmissions from other stations. On detection of a collision, the station stops transmitting, sends a jam signal, and then waits for a random time interval before retransmission. How CSMA/CD Works CSMA/CD Operation Process ...
Read MoreHTML DOM Input Checkbox disabled Property
The HTML DOM Input Checkbox disabled property sets or returns whether a checkbox input element is enabled or disabled. When a checkbox is disabled, it cannot be clicked or modified by the user and appears grayed out in the browser. Syntax Following is the syntax for returning the disabled state − inputCheckboxObject.disabled Following is the syntax for setting the disabled state − inputCheckboxObject.disabled = booleanValue Return Value The disabled property returns a boolean value indicating whether the checkbox is disabled (true) or enabled (false). Parameters The booleanValue ...
Read MoreHTML DOM Input Checkbox required Property
The HTML DOM Input Checkbox required property determines whether a checkbox input must be checked before a form can be submitted. This property corresponds to the HTML required attribute and provides a way to enforce mandatory checkbox selections in web forms. Syntax Following is the syntax for getting the required property value − inputCheckboxObject.required Following is the syntax for setting the required property − inputCheckboxObject.required = booleanValue Return Value The required property returns a Boolean value − true − The checkbox is required and must be checked ...
Read MoreHTML DOM Input Color defaultValue Property
The HTML DOM Input Color defaultValue property sets or returns the default value of a color input field. This property represents the initial value specified in the HTML value attribute, which may differ from the current value if the user has changed the color selection. Syntax Following is the syntax for getting the default value − inputColorObject.defaultValue Following is the syntax for setting the default value − inputColorObject.defaultValue = "colorValue" Parameters The defaultValue property accepts a string parameter representing a valid hexadecimal color value − ...
Read MoreHTML DOM Input Color form Property
The Input Color form property in HTML DOM returns a reference to the form element that contains the color input. This read-only property is useful for accessing the parent form of a color input element programmatically. Syntax Following is the syntax for accessing the form property − inputColorObject.form Return Value The form property returns a reference to the HTMLFormElement object that contains the color input. If the input is not inside a form, it returns null. Example − Getting Form Reference Following example demonstrates how to get the form reference of ...
Read MoreHTML DOM Input Color Object
The HTML DOM Input Color Object represents an HTML input element with type="color". This object provides methods and properties to interact with color picker elements through JavaScript, allowing developers to create, access, and manipulate color input fields programmatically. Syntax Following is the syntax for creating an input color object − var colorObject = document.createElement("input"); colorObject.type = "color"; Following is the syntax for accessing an existing color input − var colorObject = document.getElementById("colorId"); Properties The Input Color Object supports several properties that allow you to control its behavior and appearance ...
Read MoreHTML DOM Input Color value Property
The HTML DOM Input Color value property returns or sets the value of an HTML color input field as a hexadecimal color string. This property allows you to programmatically get the currently selected color or change the color picker to display a different color value. Syntax Following is the syntax for returning the color value − inputColorObject.value Following is the syntax for setting the color value − inputColorObject.value = "hexColorString" Return Value The value property returns a string representing the color in hexadecimal format (e.g., #ff0000 for red). If ...
Read MoreHTML DOM Input Date disabled Property
The HTML DOM Input Date disabled property controls whether a date input field is enabled or disabled. When disabled is set to true, the date input becomes unresponsive to user interaction and appears grayed out. This property is useful for conditionally enabling or disabling date selection based on application logic. Syntax Following is the syntax for getting the disabled state − inputDateObject.disabled Following is the syntax for setting the disabled state − inputDateObject.disabled = booleanValue Parameters The disabled property accepts a boolean value − Value ...
Read MoreHTML DOM Input Date name Property
The HTML DOM Input Date name property gets or sets the value of the name attribute for an HTML element. This property is essential for identifying form data when submitted to a server, as the name serves as the key in name-value pairs. Syntax Following is the syntax to get the name attribute value − inputDateObject.name Following is the syntax to set the name attribute value − inputDateObject.name = "newName" Parameters newName − A string value representing the new name for the input date element. ...
Read MoreMatch any single character outside the given set.
To match any single character outside the given set with JavaScript RegExp, use the [^...] metacharacter. The caret ^ inside square brackets creates a negated character class that matches any character NOT in the specified set. Syntax /[^characters]/flags Where characters are the characters you want to exclude from matching. Example: Matching Characters Outside a Set JavaScript Regular Expression var myStr = "Welcome!"; var ...
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