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Articles by Rama Giri
87 articles
HTML DOM Input Checkbox disabled Property
The HTML DOM Input Checkbox disabled property sets/returns whether Input Checkbox is to be enabled or disabled.SyntaxFollowing is the syntax −Returning boolean value − true/falseinputCheckboxObject.disabledSetting disabled to booleanValueinputCheckboxObject.disabled = booleanValueBoolean ValuesHere, “booleanValue” can be the following −booleanValueDetailstrueIt defines that the checkbox is disabled.falseIt defines that the checkbox is not disabled and it is also the default value.ExampleLet us see an example of Input Checkbox disabled property − Student Details Biology: Mathematics: Physics: Psychology: Enable Subjects function enableCheckboxes(){ var enableCheckboxes = ...
Read MoreHTML DOM Input Checkbox required Property
The Input Checkbox required property determines whether Input Checkbox is compulsory to check or not.SyntaxFollowing is the syntax −Returning boolean value - true/falseinputCheckboxObject.requiredSetting required to booleanValueinputCheckboxObject.required = booleanValueBoolean ValuesHere, “booleanValue” can be the following −booleanValueDetailstrueIt defines that it is compulsory to check the checkbox to submit form.falseIt is the default value and checking is not compulsory.ExampleLet us see an example of Input Checkbox required property − Required Attribute of Checkbox Check me ! I am required: Check if form is submittable function getRequiredStatus(){ var requiredBool = ...
Read MoreHTML DOM Input Color defaultValue Property
The HTML DOM Input Color defaultValue property sets/returns the default value corresponding to a color. It may or may not be same as value attribute.SyntaxFollowing is the syntax −Returning string valueinputColorObject.defaultValueSetting defaultValue to stringinputColorObject.defaultValue = ‘string’Boolean ValueHere, “string” can be the following −booleanValueDetails#000000 - #ffffffIt defines that input color can have a default value between the defined rangeExampleLet us see an example of Input Color defaultValue property − Input Color Default Value Color Picker: Get Default Value var divDisplay = document.getElementById("divDisplay"); var inputColor = document.getElementById("Color"); function getDefaultValue() { ...
Read MoreHTML DOM Input Color form Property
The Input Color form property returns the reference of enclosing form for input color.SyntaxFollowing is the syntax −Returning reference to the form objectinputColorObject.formExampleLet us see an example of Input Color form property − Input Color Form Color Picker: Get Form ID function getFormID() { var inputColor = document.getElementById("Color"); var divDisplay = document.getElementById("divDisplay"); divDisplay.textContent = 'Form ID for color input: '+inputColor.form.id; } OutputThis will produce the following output −Before clicking ‘Get Form ID’ button −After clicking ‘Get Form ID’ button −
Read MoreHTML DOM Input Color Object
The HTML DOM Input Color Object represents an input HTML element with type color.SyntaxFollowing is the syntax −Creating an with type color −var colorObject = document.createElement(“input”); colorObject.type = “color”;AttributesHere, “colorObject” can have the following attributes −AttributesDescriptionautocompleteIt defines the value of autocomplete attribute of a color pickerautofocusIt defines if the color picker should be focused on initial page load.defaultValueIt sets/returns the default value of color pickerdisabledIt defines if color picker is disabled/enabledformIt returns a reference of enclosing form that contains the color pickernameIt defines the value of name attribute of a color pickertypeIt returns the type of form element of ...
Read MoreHTML DOM Input Color value Property
The HTML DOM Input Color value property returns a string, which represents the value of the input color value attribute. User can also set it to a new string.SyntaxFollowing is the syntax −Returning string valueinputColorObject.valueSetting value attribute to a string valueinputColorObject.value = ‘String’ExampleLet us see an example of Input Color value property − Input Color Value Primary-Color: Get type & change to text var inputColor = document.getElementById("Color"); var divDisplay = document.getElementById("divDisplay"); divDisplay.textContent = 'value: '+inputColor.value; function changeValue() { if(inputColor.value == '#00ff00'){ ...
Read MoreHTML DOM Input Date disabled Property
The HTML DOM Input Date disabled property sets/returns whether Input Date is enabled or disabled.SyntaxFollowing is the syntax −Returning boolean value - true/falseinputDateObject.disabledSetting disabled to booleanValueinputDateObject.disabled = booleanValueBoolean ValueHere, “booleanValue” can be the following −booleanValueDetailstrueIt defines that the input date is disabled.falseIt defines that the input date is not disabled and it is also the default value.ExampleLet us see an example of Input Date disabled property − Input Date Disabled Date Select: Enable Date Input var divDisplay = document.getElementById("divDisplay"); var inputDate = document.getElementById("dateSelect"); divDisplay.textContent = 'Date Input disabled: '+inputDate.disabled; ...
Read MoreHTML DOM Input Date name Property
The HTML DOM Input Date name property returns a string, which is the name attribute of input date. User can also set it to a new string.SyntaxFollowing is the syntax −Returning string valueinputDateObject.nameSetting name attribute to a string valueinputDateObject.name = ‘String’ExampleLet us see an example of Input Date name property − Input Date Name Date Select: Change name value var inputDate = document.getElementById("date"); var divDisplay = document.getElementById("divDisplay"); divDisplay.textContent = 'Name of date input: '+inputDate.name; function changeNameValue() { if(inputDate.name == 'Monday'){ inputDate.name ...
Read MoreCSMA 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.AlgorithmsThe algorithm of CSMA/CD is:When a frame is ready, the transmitting station checks whether the channel is idle or busy.If ...
Read MoreGet the number of rows in a particular table with MySQL
Let us first create a table −mysql> create table DemoTable -> ( -> LastName varchar(100) -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('Smith'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values('Miller'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('Taylor'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('Brown'); Query OK, 1 row affected (0.29 sec)Display all records from the table using select statement −mysql> select *from DemoTable;OutputThis will produce ...
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