空字符串判断

2025-07-11 17:18:49 +08:00 · 2025-07-11 17:18:49 +08:00 · 2da6409a0b
commit 2da6409a0b
parent 4df444ed0e
1 changed files with 9 additions and 1 deletions
--- a/commons/basic/src/main/ets/utils/ChangeUtil.ets
+++ b/commons/basic/src/main/ets/utils/ChangeUtil.ets
@ -188,5 +188,13 @@ export class ChangeUtil {
    const g = parseInt(hex.slice(3, 5), 16);
    const b = parseInt(hex.slice(5, 7), 16);
    return `rgba(${r}, ${g}, ${b}, ${alpha})`;
-  };
+  }
+
+  static stringIsUndefinedAndNull (string:string | undefined):boolean {
+    if (string == undefined || string == "null" || string == "<null>" || string == "(null)" || string == 'undefined' || string.length <= 0) {
+      return true
+    } else {
+      return false
+    }
+  }
 }