The HTML DOM option text property returns and modify the text of an option in the HTML document.SyntaxFollowing is the syntax −1. Returning textobject.text2. Modifying textobject.text = “text”ExampleLet us see an example of HTML DOM option text property − Live Demo    html{       height:100%;   ... Read More

The HTML DOM FileUpload disabled property returns and modify the value of disabled attribute of a FileUpload input type in HTML.SyntaxFollowing is the syntax −1. Returning disabledobject.disabled2. Setting disabledobject.disabled = true|false;ExampleLet us see an example of HTML FileUpload disabled property − Live Demo    body{       ... Read More

Let us first create a collection with documents −> db.incrementDemo.insertOne({"Value1":10, "Value2":20}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cbdaf07de8cc557214c0e15") }Display all documents from a collection with the help of find() method. The query is as follows −> db.incrementDemo.find().pretty();This will produce the following output −{    "_id" : ObjectId("5cbdaf07de8cc557214c0e15"),   ... Read More

You can use createUser() method for this. Following is the syntax −db.createUser(    {       user: "yourUserName",       pwd: "yourPassword",       roles: [ { role: "read", db: "yourDatabaseName" } ]    } );Let us create a user in MongoDB. Here, we are using database ... Read More

You need to switch the database to admin. Following is the syntax −use adminThe syntax is as follows for shutdown option −db.shutdownServer()Let us implement the above syntax for shutdown −> use admin switched to db admin > db.shutdownServer()This will produce the following output −server should be down... 2019-04-22T19:11:40.949+0530 I NETWORK ... Read More

The HTML DOM input FileUpload Object represents the

The HTML DOM input FileUpload type property returns the value of type attribute of an element in an HTML document.SyntaxFollowing is the syntax −object.typeExampleLet us see an example of HTML DOM input file upload type property − Live Demo    body{       text-align:center;     ... Read More

The HTML DOM input hidden object represents the element with type=”hidden” of an HTML document.Create input hidden object −SyntaxFollowing is the syntax −var hiddenInput = document.createElement(“INPUT”); hiddenInput.setAttribute(“type”, ”hidden”);PropertiesFollowing are the properties of HTML DOM input hidden Object −PropertyExplanationformIt returns the cite of the form that contain the hidden input ... Read More

In order to convert NumberLong to String in MongoDB, you can use toString() −NumberLong('yourValue').valueOf().toString();To convert NumberLong to String, you can use valueOf() as well −NumberLong('yourValue').valueOf();Let us implement both the above syntaxes.Following is the query to convert NumberLong to String with toString() −> NumberLong('1000').valueOf().toString();This will produce the following output −1000Following is ... Read More

The HTML DOM input hidden form property returns the reference of the form that contain the hidden input field in the HTML document.SyntaxFollowing is the syntax −object.formExampleLet us see an example of HTML DOM input hidden form property − Live Demo    body{       text-align:center;   ... Read More