use new template

src/index.ts

@@ -0,0 +1,33 @@
+import logger from 'log'
+
+const log = logger('misc')
+
+export function a2str(buf: Uint8Array) : string {
+  return String.fromCharCode.apply(null, [...buf])
+}
+export function str2a(str: string) : Uint8Array {
+    const buf = new Uint8Array(str.length)
+
+    for (let i = 0;i < str.length;i++) {
+        buf[i] = str.charCodeAt(i)
+    }
+
+    return buf
+}
+
+export function a2b64(buf: Uint8Array) : string {
+    log.trace('a2b64')
+    return btoa(a2str(buf))
+}
+export function b642a(b64: string) : Uint8Array | null {
+    log.trace('b642a')
+
+    try {
+        return str2a(atob(b64))
+    } catch (e) {
+        log.warn('b64 decode failed')
+        log.debug(`error : ${e}`)
+    }
+
+    return null
+}