refactor(std): add std/_util/os.ts module (#8370)

This commit adds "std/_util/os.ts" module which contains
common os detection logic and is browser compatible.

Co-authored-by: Nayeem Rahman <nayeemrmn99@gmail.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/std/fs/expand_glob.ts b/std/fs/expand_glob.ts
index db60b2465..390df4932 100644
--- a/std/fs/expand_glob.ts
+++ b/std/fs/expand_glob.ts
@@ -16,8 +16,7 @@ import {
   walkSync,
 } from "./walk.ts";
 import { assert } from "../_util/assert.ts";
-
-const isWindows = Deno.build.os == "windows";
+import { isWindows } from "../_util/os.ts";
 
 export interface ExpandGlobOptions extends Omit<GlobOptions, "os"> {
   root?: string;