Repeat
using System.Text; namespace MyExtensions { public static class StringExtensions { public static string Repeat(this string input, int count) { if (input == null) { return null; } var sb = new StringBuilder(); for (var repeat = 0; repeat < count; repeat++) { sb.Append(input); } return sb.ToString(); } } }Example:
using System; using Microsoft.VisualStudio.TestTools.UnitTesting; using MyExtensions; namespace StringExtensionsTests { [TestClass] public class StringExtensionsTests { [TestMethod] public void RepeatBlank10() { var repeat10 = "".Repeat(10); Assert.AreEqual(0, repeat10.Length); } [TestMethod] public void RepeatNull10() { string nullString = null; // ReSharper disable once ExpressionIsAlwaysNull var repeat10 = nullString.Repeat(10); Assert.IsNull(repeat10); } [TestMethod] public void RepeatSingle0() { var repeat10 = "x".Repeat(0); Assert.AreEqual(0, repeat10.Length); } [TestMethod] public void RepeatSingle10() { var repeat10 = "x".Repeat(10); Assert.AreEqual(10, repeat10.Length); } [TestMethod] public void RepeatMulti10() { var repeat10 = "xxx".Repeat(10); Assert.AreEqual(30, repeat10.Length); } } }
Description
Repeat a string N times
Details
- Author: Robert E. Bratton
- Submitted on: 12-9-2013 20:41:31
- Language: C#
- Type: String
- Views: 3327
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