use char base startswith and endswith

src/Docfx.Build.OverwriteDocuments/OverwriteUtility.cs

@@ -23,7 +23,7 @@ public static List<OPathSegment> ParseOPath(string OPathString)
             throw new ArgumentException("OPathString cannot be null or empty.", nameof(OPathString));
         }
 
-        if (OPathString.EndsWith("/", StringComparison.Ordinal))
+        if (OPathString.EndsWith('/'))
         {
             throw new ArgumentException($"{OPathString} is not a valid OPath");
         }
@@ -39,7 +39,7 @@ public static List<OPathSegment> ParseOPath(string OPathString)
                 throw new ArgumentException($"{OPathString} is not a valid OPath");
             }
 
-            if (!match.Value.EndsWith("/", StringComparison.Ordinal) && match.Groups["key"].Success)
+            if (!match.Value.EndsWith('/') && match.Groups["key"].Success)
             {
                 throw new ArgumentException($"{OPathString} is not a valid OPath");
             }

src/Docfx.Build.RestApi/RestApiHelper.cs

@@ -48,7 +48,7 @@ public static SwaggerFormattedReference FormatReferenceFullPath(string reference
         }
 
         // Not decode for JSON String Representation
-        if (reference.StartsWith("/", StringComparison.Ordinal))
+        if (reference.StartsWith('/'))
         {
             return new SwaggerFormattedReference
             {

src/Docfx.Build.SchemaDriven/Processors/HrefInterpreter.cs

@@ -44,7 +44,7 @@ public object Interpret(BaseSchema schema, object value, IProcessContext context
         }
 
         // "/" is also considered as absolute to us
-        if (uri.IsAbsoluteUri || val.StartsWith("/", StringComparison.Ordinal))
+        if (uri.IsAbsoluteUri || val.StartsWith('/'))
         {
             return Helper.RemoveHostName(val, _siteHostName);
         }

src/Docfx.Build/DocumentBuildContext.cs

@@ -43,7 +43,7 @@ from u in parameters.XRefMaps
         if (!string.IsNullOrEmpty(versionDir))
         {
             versionDir = versionDir.Replace('\\', '/');
-            if (!versionDir.EndsWith("/", StringComparison.Ordinal))
+            if (!versionDir.EndsWith('/'))
             {
                 versionDir += "/";
             }
@@ -95,7 +95,7 @@ from u in xrefMaps
         if (!string.IsNullOrEmpty(versionFolder))
         {
             versionFolder = versionFolder.Replace('\\', '/');
-            if (!versionFolder.EndsWith("/", StringComparison.Ordinal))
+            if (!versionFolder.EndsWith('/'))
             {
                 versionFolder += "/";
             }

src/Docfx.Build/FileCollection.cs

@@ -61,11 +61,11 @@ public void Add(DocumentType type, string baseDir, IEnumerable<string> files, st
                 throw new ArgumentException("DestinationDir must start with BaseDir, or relative path.", nameof(destinationDir));
             }
         }
-        if (!string.IsNullOrEmpty(sourceDir) && !sourceDir.EndsWith("/", StringComparison.Ordinal))
+        if (!string.IsNullOrEmpty(sourceDir) && !sourceDir.EndsWith('/'))
         {
             sourceDir += "/";
         }
-        if (!string.IsNullOrEmpty(destinationDir) && !destinationDir.EndsWith("/", StringComparison.Ordinal))
+        if (!string.IsNullOrEmpty(destinationDir) && !destinationDir.EndsWith('/'))
         {
             destinationDir += "/";
         }

src/Docfx.Build/PostProcessors/SitemapGenerator.cs

@@ -33,7 +33,7 @@ public Manifest Process(Manifest manifest, string outputFolder, CancellationToke
             return manifest;
         }
 
-        if (!manifest.Sitemap.BaseUrl.EndsWith("/", StringComparison.Ordinal))
+        if (!manifest.Sitemap.BaseUrl.EndsWith('/'))
         {
             manifest.Sitemap.BaseUrl += '/';
         }
@@ -105,7 +105,7 @@ private static SitemapElementOptions GetOptions(SitemapOptions rootOptions, stri
         }
         else
         {
-            if (!options.BaseUrl.EndsWith("/", StringComparison.Ordinal))
+            if (!options.BaseUrl.EndsWith('/'))
             {
                 options.BaseUrl += '/';
             }

src/Docfx.Common/FileAbstractLayer/RealFileReader.cs

@@ -18,8 +18,8 @@ public RealFileReader(string inputFolder)
             throw new DirectoryNotFoundException($"Directory ({inputFolder}) not found.");
         }
         if (inputFolder.Length > 0 &&
-            !inputFolder.EndsWith("\\", StringComparison.Ordinal) &&
-            !inputFolder.EndsWith("/", StringComparison.Ordinal))
+            !inputFolder.EndsWith('\\') &&
+            !inputFolder.EndsWith('/'))
         {
             inputFolder += "/";
         }

src/Docfx.Common/YamlMime.cs

@@ -19,7 +19,7 @@ public static class YamlMime
         ArgumentNullException.ThrowIfNull(reader);
 
         var line = reader.ReadLine();
-        if (line == null || !line.StartsWith("#", StringComparison.Ordinal))
+        if (line == null || !line.StartsWith('#'))
         {
             return null;
         }

src/Docfx.Glob/GlobMatcher.cs

@@ -137,7 +137,7 @@ private static IEnumerable<string> Split(string path, params char[] splitter)
             yield return parts[i] + "/";
         }
 
-        yield return path.EndsWith("/", StringComparison.Ordinal) ? parts[parts.Length - 1] + "/" : parts[parts.Length - 1];
+        yield return path.EndsWith('/') ? parts[parts.Length - 1] + "/" : parts[parts.Length - 1];
     }
 
     private string ConvertSingleGlob(IEnumerable<GlobRegexItem> regexItems)
@@ -148,7 +148,7 @@ private string ConvertSingleGlob(IEnumerable<GlobRegexItem> regexItems)
 
     private static bool IsFolderPath(string path)
     {
-        return path.EndsWith("/", StringComparison.Ordinal);
+        return path.EndsWith('/');
     }
 
     /// <summary>
@@ -406,14 +406,9 @@ private bool MatchOne(string[] fileParts, GlobRegexItem[] globParts, bool matchP
 
     private bool DisallowedMatchExists(string filePart)
     {
-        if (filePart == "."
-            || filePart == ".."
-            || (!_allowDotMatch && filePart.StartsWith(".", StringComparison.Ordinal)))
-        {
-            return true;
-        }
-
-        return false;
+        return filePart == "."
+               || filePart == ".."
+               || (!_allowDotMatch && filePart.StartsWith('.'));
     }
 
     private static string UnescapeGlob(string s)

src/Docfx.MarkdigEngine/MarkdigMarkdownService.cs

@@ -173,7 +173,7 @@ private MarkdownPipeline CreateMarkdownPipeline(bool isInline, bool multipleYaml
 
     private static string GetLink(string path, MarkdownObject origin)
     {
-        if (InclusionContext.IsInclude && RelativePath.IsRelativePath(path) && PathUtility.IsRelativePath(path) && !RelativePath.IsPathFromWorkingFolder(path) && !path.StartsWith("#", StringComparison.Ordinal))
+        if (InclusionContext.IsInclude && RelativePath.IsRelativePath(path) && PathUtility.IsRelativePath(path) && !RelativePath.IsPathFromWorkingFolder(path) && !path.StartsWith('#'))
         {
             return ((RelativePath)InclusionContext.File + (RelativePath)path).GetPathFromWorkingFolder();
         }

src/Docfx.YamlSerialization/ObjectDescriptors/BetterObjectDescriptor.cs

@@ -30,8 +30,8 @@ static bool NeedQuote(object val)
                 || Regexes.NullLike.IsMatch(s)
                 || Regexes.IntegerLike.IsMatch(s)
                 || Regexes.FloatLike.IsMatch(s)
-                || s.StartsWith("'", StringComparison.Ordinal)
-                || s.StartsWith("\"", StringComparison.Ordinal)
+                || s.StartsWith('\'')
+                || s.StartsWith('"')
                 || s.Length > 0 && char.IsWhiteSpace(s[0]);
         }
     }