Simpler.NetCore.Text

Extension methods

.IsBlank()

A fluent alternative to String.IsNullOrWhiteSpace.

"Text".IsBlank();          // false
"  ".IsBlank();            // true
((String) null).IsBlank(); // true

.NotBlank()

The reverse of IsBlank; a fluent, more readable shorthand for !String.IsNullOrWhiteSpace(value);.

"Text".NotBlank();           // true
"    ".NotBlank();           // false
"".NotBlank;                 // false
(null as String).NotBlank(); // false

.NonBlank()

Use on a string variable to return it only if it's not blank (isn't null and contains more than just white-space). Basically a fluent shortcut/alternative to String.IsNullOrWhiteSpace(str) ? str : null.

String t = "Text";
String b = "    ";
String n = null;

t.NonBlank();            // "Text"
b.NonBlank() ?? "Blank"; // "Blank"
b.NonBlank();            // null
n.NonBlank("Was null");  // "Was null" 

.Part(from, to)

Return a part of a String. A more versatile version of String.Substring that supports negative arguments (offsets from the end of the string) and doesn't throw an exception if the resulting string is shorter than the requested length.

"OffsetSub".Part(0, -3);     // "Offset"
"123SubRegular".Part(3, 3);  // "Sub"
"NotEverything".Part(3);     // "Everything"
"UnMoored".Part(2, 99);      // "Moored"
"Empty".Part(10, -99);       // ""
"LastOne".Part(-3);          // "One"
"TrickOrTreat".Part(-7, -5); // "Or" 

.Repeat(times)

Repeat text a given number of times.

"9".Repeat(4); // "9999"

.Text()

Return a non-null version of a given String. Syntactic shorthand for text ?? "".

String? value = "something";
value.Text();            // "something"
value = null;
value.Text();            // ""

.TrimSuffix(suffix)

Remove a substring from the end of a String.

"markdown.md".TrimSuffix(".md"); // "markdown"

.TrimPrefix(prefix)

Remove a substring from the start of a String.

"user@email".TrimPrefix("user"); // "@email"