+Type Definition
+
+function isStrBlank(str: string): boolean;
+
+
+
+|Name |Desc |
+|------|-----------------------|
+|str |String to check |
+|return|True if string is blank|
+
+```javascript
+isStrBlank('licia'); // -> false
+isStrBlank(''); // -> true
+isStrBlank(' '); // -> true
+isStrBlank('\r\n '); // -> true
+```
+
## isStream
Check if value is a Node.js stream.
diff --git a/DOC_CN.md b/DOC_CN.md
index 6edd9554..21384273 100644
--- a/DOC_CN.md
+++ b/DOC_CN.md
@@ -8352,6 +8352,29 @@ isSorted([3, 2, 1]); // -> false
isStr('licia'); // -> true
```
+## isStrBlank
+
+检查字符串是否为空。
+
+