diff --git a/js/2024-1-9.intl.md b/js/2024-1-9.intl.md
index 44c75bf8..d9d04194 100644
--- a/js/2024-1-9.intl.md
+++ b/js/2024-1-9.intl.md
@@ -1205,14 +1205,14 @@ en-US一般每周第一天是周日，而zh-CN一般每周第一天是周一。
 
 
 ```jsx
-(new Intl.Locale('zh-CN')).weekInfo // {"firstDay":1,"weekend":[6,7],"minimalDays":1}
-(new Intl.Locale('en-US')).weekInfo // {"firstDay":7,"weekend":[6,7],"minimalDays":1}
+(new Intl.Locale('zh-CN')).getWeekInfo() // {"firstDay":1,"weekend":[6,7],"minimalDays":1}
+(new Intl.Locale('en-US')).getWeekInfo() // {"firstDay":7,"weekend":[6,7],"minimalDays":1}
 
 const locale = 'zh-CN'
-console.log(new Intl.DateTimeFormat(locale, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(locale).weekInfo.firstDay))) // '星期一'
+console.log(new Intl.DateTimeFormat(locale, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(locale).getWeekInfo().firstDay))) // '星期一'
 
 const locale = 'en-US'
-console.log(new Intl.DateTimeFormat(locale, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(locale).weekInfo.firstDay))) // 'Sunday'
+console.log(new Intl.DateTimeFormat(locale, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(locale).getWeekInfo().firstDay))) // 'Sunday'
 ```
 
 能生效的原因是 `new Date(0,0,7)` 等价于 `new Date(1900,0,7)` 对应1900年1月7日（UTC+0），此时对应US的Sunday。而 `new Date(0,0,1)` 对应1900年1月1日（UTC+0），对应CN的星期一。
@@ -1229,15 +1229,15 @@ console.log(new Intl.DateTimeFormat(locale, { weekday: "long" }).format(new Date
 1. 如何获取一周的第一天
 ```JS
 const localeUS = 'en-US'
-new Intl.DateTimeFormat(localeUS, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(localeUS).weekInfo.firstDay)) // 'Sunday'
+new Intl.DateTimeFormat(localeUS, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(localeUS).getWeekInfo().firstDay)) // 'Sunday'
 
 const localeCN = 'zh-CN'
-new Intl.DateTimeFormat(localeCN, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(localeCN).weekInfo.firstDay)) // '星期一'
+new Intl.DateTimeFormat(localeCN, { weekday: "long" }).format(new Date(0, 0, new Intl.Locale(localeCN).getWeekInfo().firstDay)) // '星期一'
 ```
 2. 输出一周7天
 ```JS
 const locale = "en-US";
-const firstDay = new Intl.Locale(locale).weekInfo.firstDay;
+const firstDay = new Intl.Locale(locale).getWeekInfo().firstDay;
 const formatInstace = new Intl.DateTimeFormat(locale, { weekday: "long" });
 for (let i = 0; i < 7; i++) {
   console.log(formatInstace.format(new Date(0, 0, firstDay + i)));
@@ -1251,7 +1251,7 @@ for (let i = 0; i < 7; i++) {
 // Saturday
 
 const localeCN = "zh-CN";
-const firstDayCN = new Intl.Locale(localeCN).weekInfo.firstDay;
+const firstDayCN = new Intl.Locale(localeCN).getWeekInfo().firstDay;
 const formatInstaceCN = new Intl.DateTimeFormat(localeCN, { weekday: "long" });
 for (let i = 0; i < 7; i++) {
   console.log(formatInstaceCN.format(new Date(0, 0, firstDayCN + i)));
@@ -1424,4 +1424,4 @@ const intlEn = createIntl(
 // Call imperatively
 console.log(intlFr.formatNumber(2000000000000)) // 2 000 000 000 000
 console.log(intlEn.formatNumber(2000000000000)) // 2,000,000,000,000
-```
\ No newline at end of file
+```