> For the complete documentation index, see [llms.txt](https://docs.wepin.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wepin.io/widget-integration/web-javascript-sdk/login-library/init.md).

# 초기화하기

Wepin Login Library를 초기화하는 방법입니다. 

## init

Wepin Login Library 초기화 합니다. 초기화시에  위젯 화면에 보여질 언어를 설정합니다.

```javascript
await wepinLogin.init(language?)
```

### **Parameters**

* `language`: \<string>\
  위젯 기본 언어 설정, 기본 값은 `'en'` 입니다. 현재 지원하는 언어는 `'ko'`, `'en'`, `'ja'`3가지 입니다.

### **Return value**

* `Promise`\<void>

### Example

```javascript
await wepinLogin.init('ko')
```

## isInitialized

Wepin Login Library가 정상적으로 초기화 되었는지 확인할 수 있습니다.&#x20;

```javascript
wepinLogin.isInitialized()
```

### **Parameters**

* \<void>

### **Return Value**

* `<boolean>`\
  초기화가 정상적으로 잘 된 경우 **true** , 실패한 경우 **false** 를 반환합니다.

### **Example**

```javascript
if(wepinLogin.isInitialized()) {
  console.log('wepinSDK is initialized!')
}
```

## changeLanguage

위젯의 언어를 변경할 수 있습니다.

```javascript
wepinLogin.changeLanguage(language)
```

### **Parameters**

* `language` \<string>\
  위젯에 표시될 언어를  지정합니다. 현재 지원하는 언어는 `'ko'`, `'en'`, `'ja'` 3가지 입니다.

### Example

```javascript
wepinLogin.changeLanguage('ko')
```


---

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