@deessejs/type-testing - npm Package Compare versions

Comparing version 0.1.5 to 0.2.0

dist/runtime/comparison.d.ts

+/**
+ * Runtime comparison utilities.
+ */
+/**
+ * Result of checking if a value matches a type.
+ */
+export interface TypeCheckResult<T> {
+    matches: boolean;
+    value: T;
+    typeName: string;
+}
+/**
+ * Check if a value is a string.
+ *
+ * @example
+ * ```typescript
+ * const result = isString('hello')
+ * result.matches // true
+ * ```
+ */
+export declare function isString(value: unknown): TypeCheckResult<string>;
+/**
+ * Check if a value is a number.
+ *
+ * @example
+ * ```typescript
+ * const result = isNumber(42)
+ * result.matches // true
+ * ```
+ */
+export declare function isNumber(value: unknown): TypeCheckResult<number>;
+/**
+ * Check if a value is a boolean.
+ *
+ * @example
+ * ```typescript
+ * const result = isBoolean(true)
+ * result.matches // true
+ * ```
+ */
+export declare function isBoolean(value: unknown): TypeCheckResult<boolean>;
+/**
+ * Check if a value is an object.
+ *
+ * @example
+ * ```typescript
+ * const result = isObject({ a: 1 })
+ * result.matches // true
+ * ```
+ */
+export declare function isObject(value: unknown): TypeCheckResult<object>;
+/**
+ * Check if a value is an array.
+ *
+ * @example
+ * ```typescript
+ * const result = isArray([1, 2, 3])
+ * result.matches // true
+ * ```
+ */
+export declare function isArray(value: unknown): TypeCheckResult<unknown[]>;
+/**
+ * Check if a value is null.
+ *
+ * @example
+ * ```typescript
+ * const result = isNull(null)
+ * result.matches // true
+ * ```
+ */
+export declare function isNull(value: unknown): TypeCheckResult<null>;
+/**
+ * Check if a value is undefined.
+ *
+ * @example
+ * ```typescript
+ * const result = isUndefined(undefined)
+ * result.matches // true
+ * ```
+ */
+export declare function isUndefined(value: unknown): TypeCheckResult<undefined>;
+/**
+ * Type guard that returns true if the value is a string.
+ */
+export declare function isStringGuard(value: unknown): value is string;
+/**
+ * Type guard that returns true if the value is a number.
+ */
+export declare function isNumberGuard(value: unknown): value is number;
+/**
+ * Type guard that returns true if the value is a boolean.
+ */
+export declare function isBooleanGuard(value: unknown): value is boolean;
+/**
+ * Type guard that returns true if the value is an object (not null, not array).
+ */
+export declare function isObjectGuard(value: unknown): value is object;
+/**
+ * Type guard that returns true if the value is an array.
+ */
+export declare function isArrayGuard(value: unknown): value is unknown[];
+/**
+ * Type guard that returns true if the value is null.
+ */
+export declare function isNullGuard(value: unknown): value is null;
+/**
+ * Type guard that returns true if the value is undefined.
+ */
+export declare function isUndefinedGuard(value: unknown): value is undefined;
+/**
+ * Type guard that returns true if the value is a symbol.
+ */
+export declare function isSymbolGuard(value: unknown): value is symbol;
+/**
+ * Type guard that returns true if the value is a bigint.
+ */
+export declare function isBigIntGuard(value: unknown): value is bigint;
+/**
+ * Type guard that returns true if the value is a function.
+ */
+export declare function isFunctionGuard(value: unknown): value is Function;
+//# sourceMappingURL=comparison.d.ts.map

dist/runtime/comparison.d.ts.map

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dist/runtime/comparison.js

+/**
+ * Runtime comparison utilities.
+ */
+/**
+ * Check if a value is a string.
+ *
+ * @example
+ * ```typescript
+ * const result = isString('hello')
+ * result.matches // true
+ * ```
+ */
+export function isString(value) {
+    return {
+        matches: typeof value === 'string',
+        value: value,
+        typeName: typeof value,
+    };
+}
+/**
+ * Check if a value is a number.
+ *
+ * @example
+ * ```typescript
+ * const result = isNumber(42)
+ * result.matches // true
+ * ```
+ */
+export function isNumber(value) {
+    return {
+        matches: typeof value === 'number',
+        value: value,
+        typeName: typeof value,
+    };
+}
+/**
+ * Check if a value is a boolean.
+ *
+ * @example
+ * ```typescript
+ * const result = isBoolean(true)
+ * result.matches // true
+ * ```
+ */
+export function isBoolean(value) {
+    return {
+        matches: typeof value === 'boolean',
+        value: value,
+        typeName: typeof value,
+    };
+}
+/**
+ * Check if a value is an object.
+ *
+ * @example
+ * ```typescript
+ * const result = isObject({ a: 1 })
+ * result.matches // true
+ * ```
+ */
+export function isObject(value) {
+    return {
+        matches: typeof value === 'object' && value !== null,
+        value: value,
+        typeName: typeof value,
+    };
+}
+/**
+ * Check if a value is an array.
+ *
+ * @example
+ * ```typescript
+ * const result = isArray([1, 2, 3])
+ * result.matches // true
+ * ```
+ */
+export function isArray(value) {
+    return {
+        matches: Array.isArray(value),
+        value: value,
+        typeName: Array.isArray(value) ? 'array' : typeof value,
+    };
+}
+/**
+ * Check if a value is null.
+ *
+ * @example
+ * ```typescript
+ * const result = isNull(null)
+ * result.matches // true
+ * ```
+ */
+export function isNull(value) {
+    return {
+        matches: value === null,
+        value: value,
+        typeName: value === null ? 'null' : typeof value,
+    };
+}
+/**
+ * Check if a value is undefined.
+ *
+ * @example
+ * ```typescript
+ * const result = isUndefined(undefined)
+ * result.matches // true
+ * ```
+ */
+export function isUndefined(value) {
+    return {
+        matches: value === undefined,
+        value: value,
+        typeName: value === undefined ? 'undefined' : typeof value,
+    };
+}
+// ============================================
+// Simple boolean type guards
+// ============================================
+/**
+ * Type guard that returns true if the value is a string.
+ */
+export function isStringGuard(value) {
+    return typeof value === 'string';
+}
+/**
+ * Type guard that returns true if the value is a number.
+ */
+export function isNumberGuard(value) {
+    return typeof value === 'number';
+}
+/**
+ * Type guard that returns true if the value is a boolean.
+ */
+export function isBooleanGuard(value) {
+    return typeof value === 'boolean';
+}
+/**
+ * Type guard that returns true if the value is an object (not null, not array).
+ */
+export function isObjectGuard(value) {
+    return typeof value === 'object' && value !== null && !Array.isArray(value);
+}
+/**
+ * Type guard that returns true if the value is an array.
+ */
+export function isArrayGuard(value) {
+    return Array.isArray(value);
+}
+/**
+ * Type guard that returns true if the value is null.
+ */
+export function isNullGuard(value) {
+    return value === null;
+}
+/**
+ * Type guard that returns true if the value is undefined.
+ */
+export function isUndefinedGuard(value) {
+    return value === undefined;
+}
+/**
+ * Type guard that returns true if the value is a symbol.
+ */
+export function isSymbolGuard(value) {
+    return typeof value === 'symbol';
+}
+/**
+ * Type guard that returns true if the value is a bigint.
+ */
+export function isBigIntGuard(value) {
+    return typeof value === 'bigint';
+}
+/**
+ * Type guard that returns true if the value is a function.
+ */
+// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
+export function isFunctionGuard(value) {
+    return typeof value === 'function';
+}
+//# sourceMappingURL=comparison.js.map

dist/runtime/comparison.js.map

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dist/runtime/index.d.ts

+/**
+ * Runtime type testing utilities.
+ */
+export * from './comparison.js';
+//# sourceMappingURL=index.d.ts.map

dist/runtime/index.d.ts.map

+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src/runtime/index.ts"],"names":[],"mappings":"AAAA;;GAEG;AAEH,cAAc,iBAAiB,CAAA"}

dist/runtime/index.js

+/**
+ * Runtime type testing utilities.
+ */
+export * from './comparison.js';
+//# sourceMappingURL=index.js.map

dist/runtime/index.js.map

+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/runtime/index.ts"],"names":[],"mappings":"AAAA;;GAEG;AAEH,cAAc,iBAAiB,CAAA"}

CHANGELOG.md

 # @deessejs/type-testing
 
+## 0.2.0
+
+### Minor Changes
+
+- Add runtime type checking utilities with boolean type guards
+
 ## 0.1.2
@@ -7,3 +13,3 @@
 
-- Fix ESM exports by adding explicit .js extensions to imports and exports
+- Fix .npmignore to include dist folder in published package
 
@@ -10,0 +16,0 @@ ## 0.1.1

dist/index.d.ts

@@ -9,2 +9,3 @@ /**
 export * from './utils.js';
+export * from './runtime/index.js';
 //# sourceMappingURL=index.d.ts.map

dist/index.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAGH,cAAc,kBAAkB,CAAA;AAGhC,cAAc,gBAAgB,CAAA;AAG9B,cAAc,YAAY,CAAA"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAGH,cAAc,kBAAkB,CAAA;AAGhC,cAAc,gBAAgB,CAAA;AAG9B,cAAc,YAAY,CAAA;AAG1B,cAAc,oBAAoB,CAAA"}

dist/index.js

@@ -12,2 +12,4 @@ /**
 export * from './utils.js';
+// Re-export runtime utilities
+export * from './runtime/index.js';
 //# sourceMappingURL=index.js.map

dist/index.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,+BAA+B;AAC/B,cAAc,kBAAkB,CAAA;AAEhC,gBAAgB;AAChB,cAAc,gBAAgB,CAAA;AAE9B,sBAAsB;AACtB,cAAc,YAAY,CAAA"}
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,+BAA+B;AAC/B,cAAc,kBAAkB,CAAA;AAEhC,gBAAgB;AAChB,cAAc,gBAAgB,CAAA;AAE9B,sBAAsB;AACtB,cAAc,YAAY,CAAA;AAE1B,8BAA8B;AAC9B,cAAc,oBAAoB,CAAA"}

package.json

 {
   "name": "@deessejs/type-testing",
-  "version": "0.1.5",
+  "version": "0.2.0",
   "type": "module",
@@ -19,2 +19,3 @@ "main": "./dist/index.js",
     "test": "vitest run",
+    "test:coverage": "vitest run --coverage",
     "test:watch": "vitest",
@@ -21,0 +22,0 @@ "clean": "rm -rf dist"

README.md

@@ -167,2 +167,42 @@ # @deessejs/type-testing
 
+## Runtime Type Checking
+
+The library also provides runtime type checking utilities:
+
+```typescript
+import {
+  // Type check functions returning TypeCheckResult objects
+  isString,
+  isNumber,
+  isBoolean,
+  isObject,
+  isArray,
+  isNull,
+  isUndefined,
+
+  // Boolean type guards (for use in conditionals)
+  isStringGuard,
+  isNumberGuard,
+  isBooleanGuard,
+  isObjectGuard,
+  isArrayGuard,
+  isNullGuard,
+  isUndefinedGuard,
+  isSymbolGuard,
+  isBigIntGuard,
+  isFunctionGuard
+} from '@deessejs/type-testing'
+
+// TypeCheckResult objects
+const stringResult = isString('hello')
+stringResult.matches   // true
+stringResult.value     // 'hello'
+stringResult.typeName   // 'string'
+
+// Boolean type guards
+if (isStringGuard(value)) {
+  // value is narrowed to string here
+}
+```
+
 ## Chainable API
@@ -169,0 +209,0 @@

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

224330

6.03%

Number of package files

69

13.11%

Lines of code

844

58.35%

Number of lines in readme file

345

13.11%

Number of medium supply chain risk alerts

0

-100%

No dependency changes