diff --git a/1-js/02-first-steps/10-ifelse/1-if-zero-string/solution.md b/1-js/02-first-steps/10-ifelse/1-if-zero-string/solution.md
index 51f1d4680..3adf87e57 100644
--- a/1-js/02-first-steps/10-ifelse/1-if-zero-string/solution.md
+++ b/1-js/02-first-steps/10-ifelse/1-if-zero-string/solution.md
@@ -1,12 +1,12 @@
-**Yes, it will.**
+**Có, sẽ hiện ra.**
-Any string except an empty one (and `"0"` is not empty) becomes `true` in the logical context.
+Bất kì chuỗi văn bản nào trừ chuỗi trống (và `"0"` không trống) trở thành `true` trong hoàn cảnh logic.
-We can run and check:
+Ta có thể chạy và kiểm tra:
```js run
if ("0") {
- alert( 'Hello' );
+ alert( 'Xin chào' );
}
```
diff --git a/1-js/02-first-steps/10-ifelse/1-if-zero-string/task.md b/1-js/02-first-steps/10-ifelse/1-if-zero-string/task.md
index 5f16cda85..6955ae680 100644
--- a/1-js/02-first-steps/10-ifelse/1-if-zero-string/task.md
+++ b/1-js/02-first-steps/10-ifelse/1-if-zero-string/task.md
@@ -2,13 +2,13 @@ importance: 5
---
-# if (a string with zero)
+# if (chuỗi văn bản với số 0)
-Will `alert` be shown?
+`alert` có hiện ra không?
```js
if ("0") {
- alert( 'Hello' );
+ alert( 'Xin chào' );
}
```
diff --git a/1-js/02-first-steps/10-ifelse/2-check-standard/ifelse_task2/index.html b/1-js/02-first-steps/10-ifelse/2-check-standard/ifelse_task2/index.html
index ea9966653..0bd09d8d6 100644
--- a/1-js/02-first-steps/10-ifelse/2-check-standard/ifelse_task2/index.html
+++ b/1-js/02-first-steps/10-ifelse/2-check-standard/ifelse_task2/index.html
@@ -5,12 +5,12 @@
diff --git a/1-js/02-first-steps/10-ifelse/2-check-standard/task.md b/1-js/02-first-steps/10-ifelse/2-check-standard/task.md
index 4305584fa..19dddaf29 100644
--- a/1-js/02-first-steps/10-ifelse/2-check-standard/task.md
+++ b/1-js/02-first-steps/10-ifelse/2-check-standard/task.md
@@ -2,11 +2,11 @@ importance: 2
---
-# The name of JavaScript
+# Tên của JavaScript
-Using the `if..else` construct, write the code which asks: 'What is the "official" name of JavaScript?'
+Dùng cấu trúc `if..else`, viết mã để hỏi: 'Tên "chính thức" của JavaScript là gì?'.
-If the visitor enters "ECMAScript", then output "Right!", otherwise -- output: "You don't know? ECMAScript!"
+Nếu người đến thăm điền "ECMAScript", cho ra "Đúng rồi!", nếu không, cho ra: "Bạn không biết sao? ECMAScript!".

diff --git a/1-js/02-first-steps/10-ifelse/3-sign/if_sign/index.html b/1-js/02-first-steps/10-ifelse/3-sign/if_sign/index.html
index f168360dd..3454da5d8 100644
--- a/1-js/02-first-steps/10-ifelse/3-sign/if_sign/index.html
+++ b/1-js/02-first-steps/10-ifelse/3-sign/if_sign/index.html
@@ -6,7 +6,7 @@