test:

jensen.d.ts

@@ -11,7 +11,7 @@ declare module 'jensen' {
         name: string;
         createDate: string;
         createTime: string;
-        time: string;
+        time: Date;
         duration: number;
         length: number;
         signature: string;

src/jensen.js

@@ -73,7 +73,7 @@ function Jensen() {
     const RECV_BUFF_SIZE = 51200;
 
     const _check_conn_status = () => {
-        if (device?.opened == false) {
+        if (device?.opened === false) {
             try {
                 clearTimeout(statusTimeout);
                 if (this.ondisconnect && !this.isStopConnectionCheck) this.ondisconnect();
@@ -292,9 +292,9 @@ function Jensen() {
     };
 
     const read_int = function (a, b, c, d) {
-        if (arguments.length == 2) {
+        if (arguments.length === 2) {
             return ((a & 0xff) << 8) | (b & 0xff);
-        } else if (arguments.length == 4) {
+        } else if (arguments.length === 4) {
             return ((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff);
         }
     };
@@ -373,12 +373,12 @@ function Jensen() {
 
                 let msg = rst.message;
                 // WARN: 接下来怎么整
-                let cname = msg.id == FACTORY_RESET ? 'factory-reset' : COMMAND_NAMES[msg.id];
+                let cname = msg.id === FACTORY_RESET ? 'factory-reset' : COMMAND_NAMES[msg.id];
                 let heading = [];
                 for (let x = 0; x < msg.body?.byteLength && x < 32; x++) {
                     heading.push('0' + (msg.body[x] & 0xff).toString(16).replace(/^0(\w{2})$/gi, '$1'));
                 }
-                if (msg.id != TRANSFER_FILE)
+                if (msg.id !== TRANSFER_FILE)
                     Logger.debug(
                         'jensen',
                         'receive',
@@ -435,7 +435,7 @@ function Jensen() {
     const decodeMessage = function (dataView, startIndex, buffLength) {
         let dataLen = buffLength - startIndex;
         if (dataLen < 12) return null;
-        if (dataView[startIndex + 0] != 0x12 || dataView[startIndex + 1] != 0x34) throw new Error('invalid header');
+        if (dataView[startIndex + 0] !== 0x12 || dataView[startIndex + 1] !== 0x34) throw new Error('invalid header');
         // 2 字节的指令id
         let idx = 2;
         // let cmdid = this.nextShort(idx);
@@ -482,7 +482,7 @@ function Jensen() {
     };
 
     this.to_bcd = function (str) {
-        let x = new Array();
+        let x = [];
         for (let i = 0; i < str.length; i += 2) {
             let h = (str.charCodeAt(i) - 48) & 0xff;
             let l = (str.charCodeAt(i + 1) - 48) & 0xff;
@@ -504,7 +504,7 @@ function Jensen() {
 
 function Command(id) {
     this.command = id;
-    this.msgBody = new Array();
+    this.msgBody = [];
     this.index = 0;
     this.expireTime = 0;
     this.timeout = 0;
@@ -778,8 +778,7 @@ Jensen.prototype.setNotification = function (enable, seconds) {
     if (this.versionNumber < 327714) return { result: false };
     return this.send(new Command(SET_SETTINGS).body([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, enable ? 1 : 2], 0, 0, 0, 0), seconds);
 };
-Jensen.prototype.setBluetoothPromptPlay = function(enable, seconds)
-{
+Jensen.prototype.setBluetoothPromptPlay = function(enable, seconds) {
     return this.send(new Command(SET_SETTINGS).body([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, enable ? 1 : 2]), seconds);
 }
 
@@ -826,17 +825,16 @@ Jensen.prototype.getFileBlock = async function(filename, length, ondata) {
     return this.send(new Command(GET_FILE_BLOCK).body(data));
 }
 
-
 const commonMessageParser = (msg) => {
-    return { result: msg.body[0] == 0x00 ? 'success' : 'failed' };
+    return { result: msg.body[0] === 0x00 ? 'success' : 'failed' };
 };
 Jensen.registerHandler(SET_DEVICE_TIME, commonMessageParser);
 Jensen.registerHandler(BNC_DEMO_TEST, commonMessageParser);
 Jensen.registerHandler(DELETE_FILE, (msg) => {
     let rst = 'failed';
-    if (msg.body[0] == 0x00) rst = 'success';
-    else if (msg.body[0] == 0x01) rst = 'not-exists';
-    else if (msg.body[0] == 0x02) rst = 'failed';
+    if (msg.body[0] === 0x00) rst = 'success';
+    else if (msg.body[0] === 0x01) rst = 'not-exists';
+    else if (msg.body[0] === 0x02) rst = 'failed';
     return { result: rst };
 });
 Jensen.registerHandler(QUERY_DEVICE_INFO, (msg, jensen) => {
@@ -875,11 +873,11 @@ Jensen.registerHandler(QUERY_DEVICE_TIME, (msg, jensen) => {
         msg.body[6] & 0xff,
     );
     return {
-        time: time == '00000000000000' ? 'unknown' : time.replace(/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/gi, '$1-$2-$3 $4:$5:$6'),
+        time: time === '00000000000000' ? 'unknown' : time.replace(/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/gi, '$1-$2-$3 $4:$5:$6'),
     };
 });
 Jensen.registerHandler(QUERY_FILE_COUNT, (msg) => {
-    if (msg.body.length == 0) return { count: 0 };
+    if (msg.body.length === 0) return { count: 0 };
     let c = 0;
     for (let i = 0; i < 4; i++) {
         let b = msg.body[i] & 0xff;
@@ -891,9 +889,9 @@ Jensen.registerHandler(GET_SETTINGS, (msg) => {
     let r1 = msg.body[3];
     let r2 = msg.body[7];
     let r4 = msg.body[15];
-    let rst = { autoRecord: r1 == 1, autoPlay: r2 == 1, bluetoothTone: r4 == 1 };
+    let rst = { autoRecord: r1 === 1, autoPlay: r2 === 1, bluetoothTone: r4 === 1 };
     if (msg.body.length >= 12) {
-        let r3 = msg.body[11] == 1;
+        let r3 = msg.body[11] === 1;
         rst['notification'] = r3;
     }
     return rst;
@@ -903,15 +901,15 @@ Jensen.registerHandler(FACTORY_RESET, commonMessageParser);
 Jensen.registerHandler(REQUEST_FIRMWARE_UPGRADE, (msg) => {
     let rst = '';
     let c = msg.body[0];
-    if (c == 0x00) rst = 'accepted';
-    if (c == 0x01) rst = 'wrong-version';
-    if (c == 0x02) rst = 'busy';
-    if (c == 0x03) return 'unknown';
+    if (c === 0x00) rst = 'accepted';
+    if (c === 0x01) rst = 'wrong-version';
+    if (c === 0x02) rst = 'busy';
+    if (c === 0x03) return 'unknown';
     return { result: rst };
 });
 Jensen.registerHandler(FIRMWARE_UPLOAD, (msg) => {
     let c = msg.body[0];
-    return { result: c == 0x00 ? 'success' : 'failed' };
+    return { result: c === 0x00 ? 'success' : 'failed' };
 });
 Jensen.registerHandler(READ_CARD_INFO, (msg) => {
     let i = 0;
@@ -923,9 +921,9 @@ Jensen.registerHandler(READ_CARD_INFO, (msg) => {
 });
 Jensen.registerHandler(FORMAT_CARD, commonMessageParser);
 Jensen.registerHandler(GET_RECORDING_FILE, (msg) => {
-    if (msg.body == null || msg.body.length == 0) return { recording: null };
+    if (msg.body == null || msg.body.length === 0) return { recording: null };
     else {
-        var fname = [];
+        let fname = [];
         for (var i = 0; i < msg.body.length; i++) {
             fname.push(String.fromCharCode(msg.body[i]));
         }