Merge deno_std in main repo (#3091)

The history of deno_std is persevered but rewritten to update links to issues and PRs

Fixes denoland/deno_std#603

2 files changed, 33 insertions, 0 deletions

diff --git a/std b/std
deleted file mode 160000
-Subproject 43aafbf33285753e7b42230f0eb7969b300f71c
diff --git a/std/util/deep_assign.ts b/std/util/deep_assign.ts
new file mode 100644
index 000000000..1dfc00a5b
--- /dev/null
+++ b/std/util/deep_assign.ts
@@ -0,0 +1,33 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+export function deepAssign(
+  target: Record<string, unknown>,
+  ...sources: object[]
+): object | undefined {
+  for (let i = 0; i < sources.length; i++) {
+    const source = sources[i];
+    if (!source || typeof source !== `object`) {
+      return;
+    }
+    Object.entries(source).forEach(
+      ([key, value]: [string, unknown]): void => {
+        if (value instanceof Date) {
+          target[key] = new Date(value);
+          return;
+        }
+        if (!value || typeof value !== `object`) {
+          target[key] = value;
+          return;
+        }
+        if (Array.isArray(value)) {
+          target[key] = [];
+        }
+        // value is an Object
+        if (typeof target[key] !== `object` || !target[key]) {
+          target[key] = {};
+        }
+        deepAssign(target[key] as Record<string, unknown>, value!);
+      }
+    );
+  }
+  return target;
+}