The snippet library.

C#Text validation & encoding

Enumerate Unicode code points ↗

C#: EnumerateRunes combines surrogate pairs into Unicode scalar values.

C#✓ Tested

C#Asynchronous work & URI handling

Escape a URL query value ↗

C#: EscapeDataString percent-encodes one value rather than an entire URL.

C#✓ Tested

C#Asynchronous work & URI handling

Escape text for an HTML context ↗

C#: HtmlEncode converts markup delimiters in plain text before rendering it as HTML content.

C#✓ Tested

C#Getting Started

Explain a calculation with a comment ↗

C#: Keep the code executable while documenting why a fixed input is used.

C#✓ Tested

C#Text validation & encoding

Extract a substring with range syntax ↗

C#: C# range ends are exclusive; indices operate on UTF-16 code units.

C#✓ Tested

C#Text validation & encoding

Extract all integer tokens from text ↗

C#: Enumerate Match objects returned by Regex.Matches with an explicit timeout.

C#✓ Tested

C#Collections

Filter even numbers ↗

Use LINQ Where to keep even C# values.

C#✓ Tested

C#LINQ transformations

Find a matching item with a fallback ↗

C#: Use the FirstOrDefault overload with an explicit default value.

C#✓ Tested

C#Strings

Find text ignoring case ↗

Use ordinal case-insensitive comparison for a C# substring search.

C#✓ Tested

C#Dates & precise numbers

Find the length of a calendar month ↗

C#: DaysInMonth applies the Gregorian leap-year rules.

C#✓ Tested

C#Collections & data structures

Find values common to two collections ↗

C#: Intersect returns distinct values shared by the inputs.

C#✓ Tested

C#Collections & data structures

Find values missing from another collection ↗

C#: Except removes duplicates as it calculates the set difference.

C#✓ Tested