3 files changed, 7 insertions, 3 deletions
diff --git a/std/path/glob.ts b/std/path/glob.ts
index daee22f98..a079f448f 100644
--- a/std/path/glob.ts
+++ b/std/path/glob.ts
@@ -1,6 +1,8 @@
 import { SEP, SEP_PATTERN } from "./constants.ts";
 import { globrex } from "./globrex.ts";
 import { join, normalize } from "./mod.ts";
+import { assert } from "../testing/asserts.ts";
+
 const { DenoError, ErrorKind } = Deno;
 
 export interface GlobOptions {
@@ -46,7 +48,8 @@ export function globToRegExp(
     strict: false,
     filepath: true
   });
-  return result.path!.regex;
+  assert(result.path != null);
+  return result.path.regex;
 }
 
 /** Test whether the given string is a glob */
diff --git a/std/path/utils.ts b/std/path/utils.ts
index 7a4cd7299..9911f5347 100644
--- a/std/path/utils.ts
+++ b/std/path/utils.ts
@@ -49,7 +49,7 @@ export function normalizeString(
   let code: number;
   for (let i = 0, len = path.length; i <= len; ++i) {
     if (i < len) code = path.charCodeAt(i);
-    else if (isPathSeparator(code!)) break;
+    else if (isPathSeparator(code)) break;
     else code = CHAR_FORWARD_SLASH;
 
     if (isPathSeparator(code)) {
diff --git a/std/path/win32.ts b/std/path/win32.ts
index 79e04ea6e..11518ee7c 100644
--- a/std/path/win32.ts
+++ b/std/path/win32.ts
@@ -17,6 +17,7 @@ import {
   normalizeString,
   _format
 } from "./utils.ts";
+import { assert } from "../testing/asserts.ts";
 
 export const sep = "\\";
 export const delimiter = ";";
@@ -329,7 +330,7 @@ export function join(...paths: string[]): string {
   //   path.join('//server', 'share') -> '\\\\server\\share\\')
   let needsReplace = true;
   let slashCount = 0;
-  firstPart = firstPart!;
+  assert(firstPart != null);
   if (isPathSeparator(firstPart.charCodeAt(0))) {
     ++slashCount;
     const firstLen = firstPart.length;