empty strings numberify to zero

Author: gregsdennis

JsonLogic.Tests/Files/more-tests.json

@@ -46,6 +46,7 @@
 	[ {"<" : ["123", "456", "789"]}, {}, true ],
 	[ {"<" : ["123", 456, "789"]}, {}, true ],
 	[ {"<" : ["123a", 456, "789"]}, {}, false ],
+	[ {"<" : ["", "4", 5]}, {}, true ],
 	[ {"cat" : ["abc", [123,456]]}, {}, "abc123,456" ],
 	[ {"in" : [123, "abcd"]}, {}, false ],
 	[ {"in" : ["bcd", 123]}, {}, false ],

JsonLogic/JsonLogic.csproj

@@ -15,9 +15,9 @@
 		<PackageTags>json logic json-logic jsonlogic</PackageTags>
 		<PackageReleaseNotes>Release notes can be found on [GitHub](https://github.com/gregsdennis/json-everything/blob/master/json-everything.net/wwwroot/md/release-notes/json-logic.md) and https://json-everything.net/json-logic</PackageReleaseNotes>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-		<Version>4.0.0</Version>
+		<Version>4.0.1</Version>
 		<AssemblyVersion>4.0.0.0</AssemblyVersion>
-		<FileVersion>4.0.0.0</FileVersion>
+		<FileVersion>4.0.1.0</FileVersion>
 		<DocumentationFile>JsonLogic.xml</DocumentationFile>
 		<IncludeSymbols>true</IncludeSymbols>
 		<SymbolPackageFormat>snupkg</SymbolPackageFormat>

JsonLogic/JsonNodeExtensions.cs

@@ -82,7 +82,8 @@ public static bool IsTruthy(this JsonNode? node)
 	/// <returns>
 	///	A string representation of the value as follows:
 	///
-	/// - strings try to parse a number from the value
+	/// - empty string returns 0
+	/// - all other strings try to parse a number from the value
 	/// - true returns 1
 	/// - false returns 0
 	///	- numbers are unchanged
@@ -94,7 +95,12 @@ public static bool IsTruthy(this JsonNode? node)
 
 		if (node is not JsonValue value) return null;
 
-		if (value.TryGetValue(out string? s)) return decimal.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture.NumberFormat, out var d) ? d : null;
+		if (value.TryGetValue(out string? s))
+			return s == string.Empty
+				? 0
+				: decimal.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture.NumberFormat, out var d)
+					? d
+					: null;
 
 		if (value.TryGetValue(out bool b)) return b ? 1 : 0;
 

json-everything.net/wwwroot/md/release-notes/json-logic.md

@@ -1,3 +1,7 @@
+# 4.0.1 (no PR) {#release-logic-4.0.0}
+
+Empty strings "numberify" to 0.
+
 # [4.0.0](https://github.com/gregsdennis/json-everything/pull/395) {#release-logic-4.0.0}
 
 [#377](https://github.com/gregsdennis/json-everything/issues/377) - Alignment with JS version available online at https://jsonlogic.com/.