2023-02-26 01:30

getting-started/20_buffer.js

@@ -0,0 +1,23 @@
+// 0으로 초기화됨.
+const buffer = Buffer.alloc(1024);
+
+//or 초기화 없음
+// buffer = Buffer.allocUnsafe(1024);
+buffer.write('Hi.');
+console.log(buffer.toString());
+
+const buff = Buffer.from('Hello');
+console.log(buff[0]);
+console.log(buff.length);
+console.log(buff.toString());
+for (const c of buff) {
+    console.log(c);
+}
+
+
+// copy
+let buf2 = Buffer.alloc(2);
+buffer.copy(buf2, 0, 0, 2);
+
+// slice
+console.log(buffer.slice(0, 2).toString());