From 7b798433a53c475015a5cc86209aa7bf65cb587b Mon Sep 17 00:00:00 2001
From: unknown <21157814392qq.com>
Date: Wed, 22 Feb 2023 17:35:39 +0800
Subject: [PATCH] 'zuoye'

---
 .../2\346\234\21021\346\227\245/demo.js"      | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 "\351\203\221\351\271\217\347\250\213/2\346\234\21021\346\227\245/demo.js"

diff --git "a/\351\203\221\351\271\217\347\250\213/2\346\234\21021\346\227\245/demo.js" "b/\351\203\221\351\271\217\347\250\213/2\346\234\21021\346\227\245/demo.js"
new file mode 100644
index 00000000..113c1d5b
--- /dev/null
+++ "b/\351\203\221\351\271\217\347\250\213/2\346\234\21021\346\227\245/demo.js"
@@ -0,0 +1,20 @@
+let fs = require("fs");
+let str = "bsvqhjsgvcbasdhb169823746198726bkjasbc你jhbsvqhjsgvcbasdhb169823746198726bkjasbcjh45dkjhciqu789jftxhrf";
+let fd = fs.openSync("./bigFile.txt", "a");
+for (let i = 0; i < 100000; i++) {
+    fs.writeSync(fd, String(str.substring(parseInt(Math.random() * 100), parseInt(Math.random() * 100))));
+}
+fs.closeSync(fd);
+let stream = fs.createReadStream("./bigFile.txt"), arr = Array();
+stream.on("data", (chunk) => {
+    for (let i = 0; i < chunk.toString().length; i++) {
+        var s = chunk.toString()[i] + "=";
+        arr[s] > 0 ? arr[s]++ : arr[s] = 1;
+    }
+})
+stream.on("end", () => {
+    console.log(((max = { name: null, num: 0 }) => {
+        for (const key in arr) {if (arr[key] > max.num) { max.name = key.slice(0, 1); max.num = arr[key] }}
+        return max;
+    })())
+})
\ No newline at end of file
-- 
Gitee