# Nodejs 代码规范 - fengmk2

# Nodejs 代码规范

## 空格

### 缩进 tab => 2空格

```js
exports.print = function () {
  for (var i = 0, len = arguments.length; i < len; ++i) {
    process.stdout.write(String(arguments[i]));
  }
};
```

### for, if 括号前后间隔 1空格

```js
function format(value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (
    value &&
    typeof value.inspect === "function" &&
    // Filter out the util module, it's inspect function is special
    value !== exports &&
    // Also filter out any prototype objects using the circular check.
    !(value.constructor && value.constructor.prototype === value)
  ) {
    return value.inspect(recurseTimes);
  }
}
```

### function 只需后 `)` 与 `{` 直接间隔 1空格

```js
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()), pad(d.getMinutes()), pad(d.getSeconds())].join(":");
  return [d.getDate(), months[d.getMonth()], time].join(" ");
}
```

## 相等判断，使用 === , !==

```js
readStream.addListener("data", function (chunk) {
  if (writeStream.write(chunk) === false) readStream.pause();
});
```