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JavaScript date getTimezoneOffset() method returns the time-zone offset in minutes for the current locale. The time-zone offset is the minutes in difference; the Greenwich Mean Time (GMT) is relative to your local time.ExampleYou can try to run the following code to return the time-one offset in minutes − JavaScript getTimezoneOffset Method var dt = new Date(); var tz = dt.getTimezoneOffset(); document.write("getTimezoneOffset() : " + tz );
Set Hashtable collection with elements.Hashtable h = new Hashtable(); h.Add(1, "Jack"); h.Add(2, "Henry"); h.Add(3, "Ben"); h.Add(4, "Chris");Let’s say now you need to find any key, then use the Contains() method. We are finding key 3 here −h.Contains(3);The following is the complete example.Example Live Demousing System; using System.Collections; public class Demo { public static void Main() { Hashtable h = new Hashtable(); h.Add(1, "Jack"); h.Add(2, "Henry"); h.Add(3, "Ben"); h.Add(4, "Chris"); Console.WriteLine("Keys and Values list:"); foreach (var key in h.Keys ) ... Read More
Set Hahtable collection with elements.Hashtable h = new Hashtable(); h.Add(1, "Jack"); h.Add(2, "Henry"); h.Add(3, "Ben"); h.Add(4, "Chris");Let’s say now you need to find a value, then use the ContainsValue() method.We are finding value “Chris” here −h.ContainsValue(“Chris”);Example Live Demousing System; using System.Collections; public class Demo { public static void Main() { Hashtable h = new Hashtable(); h.Add(1, "Jack"); h.Add(2, "Henry"); h.Add(3, "Ben"); h.Add(4, "Chris"); Console.WriteLine("Keys and Values list:"); foreach (var key in h.Keys ) { Console.WriteLine("Key ... Read More
The following are the method supported by W3C DOM −Sr.NoProperty & Description1createAttribute( name)Returns a newly-created Attr node with the specified name.Ex − document.createAttribute( name)2createComment( text)Creates and returns a new Comment node containing the specified text.Ex − document.createComment( text)3createDocumentFragment( )Creates and returns an empty DocumentFragment node.Ex − document.createDocumentFragment( )4createElement( tagName)Creates and returns a new Element node with the specified tag name.Ex − document.createElement( tagName)5createTextNode( text)Creates and returns a new Text node that contains the specified text.Ex − document.createTextNode( text)6getElementById( id)Returns the Element of this document that has the specified value for its id attribute, or null if no such Element exists ... Read More
To convert a specified value to a double-precision floating-point number, use Convert.ToDouble() method.The following is our long value −long[] val = { 340, -200};Now convert it to Double.double result; result = Convert.ToDouble(val);Example Live Demousing System; public class Demo { public static void Main() { long[] val = { 340, -200}; double result; // long to double foreach (long number in val) { result = Convert.ToDouble(number); Console.WriteLine("Converted {0} value to {1}",number, result); } } }OutputConverted 340 value to 340 Converted -200 value to -200
To return the number of images in a document, use the images property in JavaScript.ExampleYou can try to run the following code to get the count of images −Live Demo var val = document.images.length; document.write("Number of images in the document: "+val);
Set a Hashtable collection and add some elements to it.Hashtable h = new Hashtable(); h.Add(1, "Sam"); h.Add(2, "Jack"); h.Add(3, "Andy"); h.Add(4, "Katie"); h.Add(5, "Beth"); h.Add(6, "Benjamin");Use the ContainsKey() method to check whether a key exists in a Hashtable or not.Let’s check for key 3. It returns True of the key is found.h.ContainsKey(3));Example Live Demousing System; using System.Collections; public class Demo { public static void Main() { Hashtable h = new Hashtable(); h.Add(1, "Sam"); h.Add(2, "Jack"); h.Add(3, "Andy"); h.Add(4, "Katie"); h.Add(5, "Beth"); ... Read More
To return the id of the first image, use the images property in JavaScript.ExampleYou can try to run the following code to return the id of the first image in a document −Live Demo var val = document.images.length; document.write("Number of images in the document: "+val); document.write("The id of the first image: "+document.images[0].id);
Clear a Hashtable, using the Clear() method in C#.The following is our Hashtable −Hashtable h = new Hashtable(); h.Add(1, "Amit"); h.Add(2, "Sachin"); h.Add(3, "Rahul");Use the clear method.h.Clear();If you will now try to display the Hashtable, nothing would get display since the Hashtable is empty.Example Live Demousing System; using System.Collections; public class Demo { public static void Main() { Hashtable h = new Hashtable(); h.Add(1, "Amit"); h.Add(2, "Sachin"); h.Add(3, "Rahul"); Console.WriteLine("Keys and Values list:"); foreach (var key in h.Keys ) { ... Read More
The following is our Dictionary with some elements −Dictionary d = new Dictionary() { {1,"Electronics"}, {2, "Clothing"}, {3,"Toys"}, {4,"Footwear"}, {5, "Accessories"} };Now to display the first element, set the key like this.d[1];The above displays the first element.Example Live Demousing System; using System.Collections.Generic; public class Program { public static void Main() { Dictionary d = new Dictionary() { {1,"Electronics"}, {2, "Clothing"}, {3,"Toys"}, {4,"Footwear"}, {5, "Accessories"} }; foreach (KeyValuePair ele in d) { Console.WriteLine("Key = {0}, Value = {1}", ele.Key, ele.Value); } Console.WriteLine("First element: "+d[1]); } }OutputKey = 1, Value = Electronics Key = 2, Value = Clothing Key = 3, Value = Toys Key = 4, Value = Footwear Key = 5, Value = Accessories First element: Electronics