diff --git a/changelog/0.34.0.md b/changelog/0.34.0.md
index 15b506f..55fa460 100644
--- a/changelog/0.34.0.md
+++ b/changelog/0.34.0.md
@@ -3,6 +3,8 @@
 ---
 
 ### Revision Updates
+- [Revision 0.34.48](https://github.com/sinclairzx81/typebox-legacy/pull/6)
+  - Support Sparse Array Validation
 - [Revision 0.34.47](https://github.com/sinclairzx81/typebox-legacy/pull/5)
   - Annual License Update
 - [Revision 0.34.46](https://github.com/sinclairzx81/typebox-legacy/pull/4)
diff --git a/package-lock.json b/package-lock.json
index 06b0790..a2a296a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@sinclair/typebox",
-  "version": "0.34.47",
+  "version": "0.34.48",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@sinclair/typebox",
-      "version": "0.34.47",
+      "version": "0.34.48",
       "license": "MIT",
       "devDependencies": {
         "@arethetypeswrong/cli": "^0.13.2",
diff --git a/package.json b/package.json
index 313160b..db8fd39 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sinclair/typebox",
-  "version": "0.34.47",
+  "version": "0.34.48",
   "description": "Json Schema Type Builder with Static Type Resolution for TypeScript",
   "keywords": [
     "typescript",
diff --git a/src/compiler/compiler.ts b/src/compiler/compiler.ts
index 84ba3c8..3c61539 100644
--- a/src/compiler/compiler.ts
+++ b/src/compiler/compiler.ts
@@ -257,7 +257,8 @@ export namespace TypeCompiler {
     if (IsNumber(schema.maxItems)) yield `${value}.length <= ${schema.maxItems}`
     if (IsNumber(schema.minItems)) yield `${value}.length >= ${schema.minItems}`
     const elementExpression = CreateExpression(schema.items, references, 'value')
-    yield `${value}.every((${parameter}) => ${elementExpression})`
+    // yield `${value}.every((${parameter}) => ${elementExpression})` // issue: 1519
+    yield `((array) => { for(const ${parameter} of array) if(!(${elementExpression})) { return false }; return true; })(${value})`
     if (IsSchema(schema.contains) || IsNumber(schema.minContains) || IsNumber(schema.maxContains)) {
       const containsSchema = IsSchema(schema.contains) ? schema.contains : Never()
       const checkExpression = CreateExpression(containsSchema, references, 'value')
diff --git a/src/value/check/check.ts b/src/value/check/check.ts
index c1271ce..69fb024 100644
--- a/src/value/check/check.ts
+++ b/src/value/check/check.ts
@@ -117,8 +117,8 @@ function FromArray(schema: TArray, references: TSchema[], value: any): boolean {
   if (IsDefined<number>(schema.maxItems) && !(value.length <= schema.maxItems)) {
     return false
   }
-  if (!value.every((value) => Visit(schema.items, references, value))) {
-    return false
+  for (const element of value) {
+    if (!Visit(schema.items, references, element)) return false
   }
   // prettier-ignore
   if (schema.uniqueItems === true && !((function() { const set = new Set(); for(const element of value) { const hashed = Hash(element); if(set.has(hashed)) { return false } else { set.add(hashed) } } return true })())) {
diff --git a/test/runtime/compiler/array.ts b/test/runtime/compiler/array.ts
index 70af4c5..b6a0d42 100644
--- a/test/runtime/compiler/array.ts
+++ b/test/runtime/compiler/array.ts
@@ -183,4 +183,19 @@ describe('compiler/Array', () => {
       ],
     })
   })
+  // ----------------------------------------------------------------
+  // Issue: https://github.com/sinclairzx81/typebox/issues/1519
+  // ----------------------------------------------------------------
+  it('Should correctly handle sparse arrays 1', () => {
+    const T = Type.Array(Type.String())
+    const V = []
+    V[10] = 'hello'
+    Fail(T, V)
+  })
+  it('Should correctly handle sparse arrays 2', () => {
+    const T = Type.Array(Type.Union([Type.String(), Type.Undefined()]))
+    const V = []
+    V[10] = 'hello'
+    Ok(T, V)
+  })
 })
diff --git a/test/runtime/value/check/array.ts b/test/runtime/value/check/array.ts
index 9ad1be5..ee81e41 100644
--- a/test/runtime/value/check/array.ts
+++ b/test/runtime/value/check/array.ts
@@ -152,4 +152,19 @@ describe('value/check/Array', () => {
       }),
     )
   })
+  // ----------------------------------------------------------------
+  // Issue: https://github.com/sinclairzx81/typebox/issues/1519
+  // ----------------------------------------------------------------
+  it('Should correctly handle sparse arrays 1', () => {
+    const T = Type.Array(Type.String())
+    const V = []
+    V[10] = 'hello'
+    Assert.IsFalse(Value.Check(T, V))
+  })
+  it('Should correctly handle sparse arrays 2', () => {
+    const T = Type.Array(Type.Union([Type.String(), Type.Undefined()]))
+    const V = []
+    V[10] = 'hello'
+    Assert.IsTrue(Value.Check(T, V))
+  })
 })