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To reprsent Int64 as a Octal string in C#, use the ToString() method and set the base as the ToString() method’s second parameter i.e. 8 for Octal.Int64 represents a 64-bit signed integer.Firstly, set an Int64 variable.long val = 986766;Now, convert it to octal string by including 8 as the second parameter.Convert.ToString(val, 8)Example Live Demousing System; class Demo { static void Main() { long val = 986766; Console.WriteLine("Long: "+val); Console.Write("Octal String: "+Convert.ToString(val, 8)); } }OutputLong: 986766 Octal String: 3607216
Orders elements in a sequence using ThenBy() method.We have the following string array.string[] str = { "AAA", "AAAA", "A", "AAAAA", "AAAAAAAAA" };Now, use Lambda Expressions and set a condition inside the ThenBy() method to sort the strings according to the number of characters they have.IEnumerable res = str.AsQueryable() .OrderBy(alp => alp.Length).ThenBy(alp => alp);Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { string[] str = { "AAA", "AAAA", "A", "AAAAA", "AAAAAAAAA" }; IEnumerable res = str.AsQueryable() .OrderBy(alp => alp.Length).ThenBy(alp => alp); foreach (string arr ... Read More
To orders elements in a sequence in descending order, use ThenBy() and OrderByDescending.This is our string array.string[] myStr = { "Keyboard", "Laptop", "Mouse", "Monitor" };Now, use OrderByDescending to order element in Descending order. Inside that calculate the length of each string and use Lambda Expressions as well.IEnumerable res = myStr.AsQueryable().OrderByDescending(ch => ch.Length).ThenBy(ch => ch);The following is the example discussed above.Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { string[] myStr = { "Keyboard", "Laptop", "Mouse", "Monitor" }; IEnumerable res = myStr.AsQueryable().OrderByDescending(ch => ch.Length).ThenBy(ch => ch); ... Read More
The charCodeAt() method returns a number indicating the Unicode value of the character at the given index. Unicode code points range from 0 to 1, 114, 111. The first 128 Unicode code points are a direct match of the ASCII character encoding.The following parameter is supported by charCodeAt(index) −index − An integer between 0 and 1 less than the length of the string; if unspecified, defaults to 0.ExampleYou can try to run the following code to return a number indicating the Unicode value of the character − JavaScript String charCodeAt() Method ... Read More
Add a node before a given node in C# using the AddBefore() method.Our LinkedList with string nodes.string [] students = {"Henry", "David", "Tom"}; LinkedList list = new LinkedList(students);Now, let’s add node at the end.// adding a node at the end var newNode = list.AddLast("Brad");Use AddBefore() method to add a node before the node added above.list.AddBefore(newNode, "Emma");Example Live Demousing System; using System.Collections.Generic; class Demo { static void Main() { string [] students = {"Henry", "David", "Tom"}; LinkedList list = new LinkedList(students); foreach (var stu in list) { Console.WriteLine(stu); ... Read More
Perform Union on two sequences using the Queryable Union method.The following are our arrays.int[] arr1 = { 29, 40, 15, 55, 70, 30, 90 }; int[] arr2 = { 30, 36, 40, 18, 15, 55, 75 };Now, get the Union of the arrays using the Union method.arr1.AsQueryable().Union(arr2);Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { int[] arr1 = { 29, 40, 15, 55, 70, 30, 90 }; int[] arr2 = { 30, 36, 40, 18, 15, 55, 75 }; IEnumerable res = arr1.AsQueryable().Union(arr2); foreach (int a in res) Console.WriteLine("{0} ", a); } }Output29 40 15 55 70 30 90 36 18 75
To match any string with p at the end of it with JavaScript RegExp, use the p$ Quantifier.Example JavaScript Regular Expression var myStr = "Welcome to our website! Welcome"; var reg = /me$/g; var match = myStr.match(reg); document.write(match);
Use the LastorDefault() method to return the last element of a sequence or a default value if element isn’t there.The following is our empty list.List val = new List { };Now the following will not be able to display the last element since the list is empty. Therefore, the default would get display and error won’t be shown.val.AsQueryable().LastOrDefault();The following is the code.Example Live Demousing System; using System.Collections.Generic; using System.Linq; class Demo { static void Main() { List val = new List { }; double d = val.AsQueryable().LastOrDefault(); Console.WriteLine("Default Value = "+d); ... Read More
Merge sequences using predicate with Zip method.Here are our arrays to be merged.int[] intArray = { 10, 20, 30, 40 }; string[] stringArray = { "Jack", "Tim", "Henry", "Tom" };Now let’s use the Zip method to merge both the arrays.intArray.AsQueryable().Zip(stringArray, (one, two) => one + " " + two)The following is our code.Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { int[] intArray = { 10, 20, 30, 40 }; string[] stringArray = { "Jack", "Tim", "Henry", "Tom" }; var mergedSeq = intArray.AsQueryable().Zip(stringArray, (one, two) => one + " " + two); foreach (var ele in mergedSeq) Console.WriteLine(ele); } }Output10 Jack 20 Tim 30 Henry 40 Tom
To get the rank of a three-dimensional array, use the Rank property.Set a three-dimensional array.int[,,] arr = new int[3,4,5]Now get the rank.arr.RankLet us see the complete code.Exampleusing System; class Program { static void Main() { int[,,] arr = new int[3,4,5] Console.WriteLine("Dimensions of Array : " + arr.Rank); } }