diff --git a/rules/no-for-loop.js b/rules/no-for-loop.js
index 23a41ac558..3855f2705d 100644
--- a/rules/no-for-loop.js
+++ b/rules/no-for-loop.js
@@ -361,21 +361,37 @@ const create = context => {
 					let declarationElement = element;
 					let declarationType = 'const';
 					let removeDeclaration = true;
-					if (
-						elementNode &&
-						(elementNode.id.type === 'ObjectPattern' || elementNode.id.type === 'ArrayPattern')
-					) {
-						removeDeclaration = arrayReferences.length === 1;
+					let typeAnnotation;
+
+					if (elementNode) {
+						if (elementNode.id.type === 'ObjectPattern' || elementNode.id.type === 'ArrayPattern') {
+							removeDeclaration = arrayReferences.length === 1;
+						}
 
 						if (removeDeclaration) {
-							declarationType = elementNode.parent.kind;
-							declarationElement = sourceCode.getText(elementNode.id);
+							declarationType = element.type === 'VariableDeclarator' ? elementNode.kind : elementNode.parent.kind;
+							if (elementNode.id.typeAnnotation && shouldGenerateIndex) {
+								declarationElement = sourceCode.text.slice(elementNode.id.range[0], elementNode.id.typeAnnotation.range[0]);
+								typeAnnotation = sourceCode.getText(elementNode.id.typeAnnotation, -1).trim();
+							} else {
+								declarationElement = sourceCode.getText(elementNode.id);
+							}
 						}
 					}
 
-					const replacement = shouldGenerateIndex ?
-						`${declarationType} [${index}, ${declarationElement}] of ${array}.entries()` :
-						`${declarationType} ${declarationElement} of ${array}`;
+					const parts = [declarationType];
+					if (shouldGenerateIndex) {
+						parts.push(` [${index}, ${declarationElement}]`);
+						if (typeAnnotation) {
+							parts.push(`: [number, ${typeAnnotation}]`);
+						}
+
+						parts.push(` of ${array}.entries()`);
+					} else {
+						parts.push(` ${declarationElement} of ${array}`);
+					}
+
+					const replacement = parts.join('');
 
 					yield fixer.replaceTextRange([
 						node.init.range[0],
diff --git a/test/no-for-loop.js b/test/no-for-loop.js
index 15c44743dd..357b10d56f 100644
--- a/test/no-for-loop.js
+++ b/test/no-for-loop.js
@@ -203,7 +203,7 @@ ruleTester.run('no-for-loop', rule, {
 				console.log(i, el);
 			}
 		`, outdent`
-			for (const [i, el] of arr.entries()) {
+			for (let [i, el] of arr.entries()) {
 				console.log(i, el);
 			}
 		`),
@@ -247,7 +247,7 @@ ruleTester.run('no-for-loop', rule, {
 				var x = xs[j];console.log(j, x);
 			}
 		`, outdent`
-			for (const [j, x] of xs.entries()) {
+			for (var [j, x] of xs.entries()) {
 				console.log(j, x);
 			}
 		`),
@@ -277,7 +277,7 @@ ruleTester.run('no-for-loop', rule, {
 				console.log(j, x, y);
 			}
 		`, outdent`
-			for (const [j, x] of xs.entries()) {
+			for (var [j, x] of xs.entries()) {
 				var y = ys[j];
 				console.log(j, x, y);
 			}
@@ -289,7 +289,7 @@ ruleTester.run('no-for-loop', rule, {
 				console.log(j, x, y);
 			}
 		`, outdent`
-			for (const [j, x] of xs.entries()) {
+			for (var [j, x] of xs.entries()) {
 				var y = ys[j];
 				console.log(j, x, y);
 			}
@@ -301,7 +301,7 @@ ruleTester.run('no-for-loop', rule, {
 				console.log(j, x, y);
 			}
 		`, outdent`
-			for (const [j, x] of xs.entries()) {
+			for (var [j, x] of xs.entries()) {
 				var y = ys[j], i = 10;
 				console.log(j, x, y);
 			}
@@ -725,10 +725,72 @@ ruleTesterEs5.run('no-for-loop', rule, {
 	invalid: []
 });
 
+runTest.typescript({
+	valid: [],
+	invalid: [
+		{
+			// https://github.com/microsoft/vscode/blob/cf9ac85214c3f1d3d0b80cc503ff7498f2b3ea2f/src/vs/workbench/api/common/extHostLanguageFeatures.ts#L1207
+			code: outdent`
+				for (let i = 0; i < positions.length; i++) {
+					let last: vscode.Position | vscode.Range = positions[i];
+					let selectionRange = allProviderRanges[i];
+				}
+			`,
+			output: outdent`
+				for (let [i, last]: [number, vscode.Position | vscode.Range] of positions.entries()) {
+					let selectionRange = allProviderRanges[i];
+				}
+			`,
+			errors: 1
+		},
+		{
+			code: outdent`
+				for (let i = 0; i < positions.length; i++) {
+					let last: vscode.Position | vscode.Range = positions[i];
+				}
+			`,
+			output: outdent`
+				for (let last: vscode.Position | vscode.Range of positions) {
+				}
+			`,
+			errors: 1
+		}
+	]
+});
+
 runTest.visualize([
 	outdent`
 		for (let i = 0; i < arr.length; i += 1) {
 			console.log(arr[i])
 		}
+	`,
+	// #742
+	outdent`
+		for (let i = 0; i < plugins.length; i++) {
+			let plugin = plugins[i];
+			plugin = calculateSomeNewValue();
+			// ...
+		}
+	`,
+	outdent`
+		for (let i = 0; i < array.length; i++) {
+			var foo = array[i];
+			foo = bar();
+		}
+	`,
+	outdent`
+		for (let i = 0; i < array.length; i++) {
+			let foo = array[i];
+		}
+	`,
+	outdent`
+		for (let i = 0; i < array.length; i++) {
+			const foo = array[i];
+		}
+	`,
+	outdent`
+		for (let i = 0; i < array.length; i++) {
+			var foo = array[i], bar = 1;
+		}
 	`
 ]);
diff --git a/test/snapshots/no-for-loop.js.md b/test/snapshots/no-for-loop.js.md
index fcbba48f5f..b10aff7088 100644
--- a/test/snapshots/no-for-loop.js.md
+++ b/test/snapshots/no-for-loop.js.md
@@ -27,3 +27,131 @@ Generated by [AVA](https://avajs.dev).
     > 3 | }␊
         | ^^ Use a `for-of` loop instead of this `for` loop.␊
     `
+
+## no-for-loop - #2
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | for (let i = 0; i < plugins.length; i++) {␊
+      2 | 	let plugin = plugins[i];␊
+      3 | 	plugin = calculateSomeNewValue();␊
+      4 | 	// ...␊
+      5 | }␊
+    ␊
+    Output:␊
+      1 | for (let plugin of plugins) {␊
+      2 | 	plugin = calculateSomeNewValue();␊
+      3 | 	// ...␊
+      4 | }␊
+    ␊
+    Error 1/1:␊
+    > 1 | for (let i = 0; i < plugins.length; i++) {␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 2 | 	let plugin = plugins[i];␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 3 | 	plugin = calculateSomeNewValue();␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 4 | 	// ...␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 5 | }␊
+        | ^^ Use a `for-of` loop instead of this `for` loop.␊
+    `
+
+## no-for-loop - #3
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | for (let i = 0; i < array.length; i++) {␊
+      2 | 	var foo = array[i];␊
+      3 | 	foo = bar();␊
+      4 | }␊
+    ␊
+    Output:␊
+      1 | for (var foo of array) {␊
+      2 | 	foo = bar();␊
+      3 | }␊
+    ␊
+    Error 1/1:␊
+    > 1 | for (let i = 0; i < array.length; i++) {␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 2 | 	var foo = array[i];␊
+        | ^^^^^^^^^^^^^^^^^^^^␊
+    > 3 | 	foo = bar();␊
+        | ^^^^^^^^^^^^^^^^^^^^␊
+    > 4 | }␊
+        | ^^ Use a `for-of` loop instead of this `for` loop.␊
+    `
+
+## no-for-loop - #4
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | for (let i = 0; i < array.length; i++) {␊
+      2 | 	let foo = array[i];␊
+      3 | }␊
+    ␊
+    Output:␊
+      1 | for (let foo of array) {␊
+      2 | }␊
+    ␊
+    Error 1/1:␊
+    > 1 | for (let i = 0; i < array.length; i++) {␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 2 | 	let foo = array[i];␊
+        | ^^^^^^^^^^^^^^^^^^^^␊
+    > 3 | }␊
+        | ^^ Use a `for-of` loop instead of this `for` loop.␊
+    `
+
+## no-for-loop - #5
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | for (let i = 0; i < array.length; i++) {␊
+      2 | 	const foo = array[i];␊
+      3 | }␊
+    ␊
+    Output:␊
+      1 | for (const foo of array) {␊
+      2 | }␊
+    ␊
+    Error 1/1:␊
+    > 1 | for (let i = 0; i < array.length; i++) {␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 2 | 	const foo = array[i];␊
+        | ^^^^^^^^^^^^^^^^^^^^^^␊
+    > 3 | }␊
+        | ^^ Use a `for-of` loop instead of this `for` loop.␊
+    `
+
+## no-for-loop - #6
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | for (let i = 0; i < array.length; i++) {␊
+      2 | 	var foo = array[i], bar = 1;␊
+      3 | }␊
+    ␊
+    Output:␊
+      1 | for (var foo of array) {␊
+      2 | 	var bar = 1;␊
+      3 | }␊
+    ␊
+    Error 1/1:␊
+    > 1 | for (let i = 0; i < array.length; i++) {␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 2 | 	var foo = array[i], bar = 1;␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^␊
+    > 3 | }␊
+        | ^^ Use a `for-of` loop instead of this `for` loop.␊
+    `
diff --git a/test/snapshots/no-for-loop.js.snap b/test/snapshots/no-for-loop.js.snap
index 941ba67182..0b6be502d9 100644
Binary files a/test/snapshots/no-for-loop.js.snap and b/test/snapshots/no-for-loop.js.snap differ