Javascript Articles - Page 557 of 671

Use the marginTop property in JavaScript, to set the top margin. Can you try to run the following code to set the top margin of an element with JavaScript?ExampleLive Demo                    #myID {             border: 2px solid #000000;          }                     This is demo text.       Add top margin                function display() {             document.getElementById("myID").style.marginTop = "150px";          }          

Use the marginBottom property in JavaScript, to set the bottom margin.ExampleYou can try to run the following code to set the bottom margin of an element with JavaScript −Live Demo           This is demo text.       Set bottom margin                function display() {             document.getElementById("myID").style.marginBottom = "95px";          }          

To set the type of the list-item marker type, use the listStyleType property. The marker type can be square, circle, dic, etc.ExampleYou can try to run the following code to set the list-item marker type with JavaScript −Live Demo                    One          Two             Update list style type (square)       Update list style type (decimal)                function displaySquare() {             document.getElementById("myID").style.listStyleType = "square";          }          function displayDecimal() {             document.getElementById("myID").style.listStyleType = "decimal";          }          

Use the margin property in JavaScript, to set the margins. You can try to run the following code to set the margins of an element with JavaScript −ExampleLive Demo           Set all four margins       This is demo text.                function display() {             document.getElementById("myID").style.margin = "30px 20px 40px 40px";          }          

Use the maxHeight property in JavaScript to set the maximum height. You can try to run the following code to set the maximum height of an element with JavaScript −ExampleLive Demo    #box {       width: 300px;       background-color: gray;       overflow: auto;    } Click below to set Maximum height. Max Height This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is a div. This is ... Read More

To set the position of the marker of the list-item, use the listStylePosition property. You can try to run the following code to set the position of the list-item marker with JavaScript −ExampleLive Demo                    One          Two             Add list inside       Add list outside                function displayInside() {             document.getElementById("myID").style.listStylePosition = "inside";          }          function displayOutside() {             document.getElementById("myID").style.listStylePosition = "outside";          }          

To set an image as the marker in list-item, use the listStyleImage property in JavaScript.ExampleYou can try to run the following code to set an image as the list-item marker with JavaScript −Live Demo                    One          Two             Update list image                function display() {             document.getElementById("myID").style.listStyleImage = "url('http://tutorialspoint.com/css/images/bullet.gif')";          }          

JavaScript automatically allocates memory, while a variable is declared. Garbage collection finds memory no longer used by the application and releases it since it is of no use. Garbage collector uses algorithms like Mark-and-sweep algorithm, to find the memory no longer used.This algorithm is used to free memory when an object is unreachable. The garbage collector identifies the objects, which are reachable or unreachable. These unreachable objects get the treatment from the automatic garbage collector.The Reference-Counting Garbage Collection is also used for garbage collection in JavaScript. The object will get automatically garbage collected if there are no references to it. ... Read More

Store it like the following −var players = {    600 : 'Sachin',    300 : 'Brad', };For key/ value pairs, we have used the above solution, since we wanted a one-to-one. We did this to use the key as a lookup key. You can also add more values like this −var players = {    900 : 'Sachin',    300 : 'Brad',    700 : 'Steve',    200 : 'Rahul',    600 : 'Kevin',    500 : 'David', }

To set the distance between lines, use the lineHeight property. You can try to run the following code to set the distance between lines in a text with JavaScript −ExampleLive Demo           Heading 1       This is Demo Text.This is Demo TextThis is Demo Text       Set distance between lines                function display() {             document.getElementById("myID").style.lineHeight = "2";          }