tweaks

Author: mluukkai

src/content/0/zh/part0a.md

@@ -124,11 +124,10 @@ lang: zh
  - [申请第八章节的学分](https://fullstackopen.com/en/part0/general_info/#how-to-get-your-credits)。
 
 #### Part 9 - Full Stack Web Development: TypeScript (1 cr, CSM14110)
-<!-- By submitting at least 24/27 of the exercises for part 9 of the course, TypeScript, you can get one additional credit. It is recommended that you complete parts 0-7 before taking part 9.-->
- 通过提交课程第九章节TypeScript的至少24/27道练习，你可以获得一个额外的学分。建议你在学习第9章节之前完成第0-7章节。
-<!-- - Submit at least 24/27 exercises for part 9.-->
+<!-- By submitting at least 24/29 of the exercises for part 9 of the course, TypeScript, you can get one additional credit. It is recommended that you complete parts 0-7 before taking part 9.-->
+ 通过提交课程第九章节TypeScript的至少24/29道练习，你可以获得一个额外的学分。建议你在学习第9章节之前完成第0-7章节。
 
- - 提交至少24/27道第九章节的练习。
+ - 提交至少24/29道第九章节的练习。
 <!-- - [Enroll in part 9 through the Open University](https://www.avoin.helsinki.fi/palvelut/esittely.aspx?s=otm-d9125f89-a440-48e1-898a-ee4e16b06cdb).-->
  - [通过开放大学报名参加第9章节](https://www.avoin.helsinki.fi/palvelut/esittely.aspx?s=otm-d9125f89-a440-48e1-898a-ee4e16b06cdb)。
 <!-- - [Request credits for part 9](https://fullstackopen.com/en/part0/general_info/#how-to-get-your-credits).-->

src/content/1/en/part1a.md

@@ -563,6 +563,8 @@ See this [example submission repository](https://github.com/fullstack-hy2020/exa
 
 For each part of the course, there is a directory, which further branches into directories containing a series of exercises, like "unicafe" for part 1.
 
+Most of the exercises of the course build a larger application, eg. courseinfo, unicafe and anecdotes in this part, bit by bit. In is enough to submit the completed application. You can make a commit after each exercise, but that is not compulsory. For example the course info app is build in the exercises 1.1.-1.5. It is just the end result after 1.5 that you need to submit!
+
 For each web application for a series of exercises, it is recommended to submit all files relating to that application, except for the directory <i>node\_modules</i>.
 
   <h4>1.1: course information, step1</h4>

src/content/1/en/part1c.md

@@ -586,7 +586,7 @@ Next, let's make a <i>Button</i> component for the buttons of our application. W
 ```js
 const Button = (props) => {
   return (
-    <button onClick={props.onClick}>
+    <button onClick={props.handleClick}>
       {props.text}
     </button>
   )
@@ -610,15 +610,15 @@ const App = () => {
       <Display counter={counter}/>
       // highlight-start
       <Button
-        onClick={increaseByOne}
+        handleClick={increaseByOne}
         text='plus'
       />
       <Button
-        onClick={setToZero}
+        handleClick={setToZero}
         text='zero'
       />     
       <Button
-        onClick={decreaseByOne}
+        handleClick={decreaseByOne}
         text='minus'
       />           
       // highlight-end
@@ -719,7 +719,7 @@ We can simplify the Button component as well.
 ```js
 const Button = (props) => {
   return (
-    <button onClick={props.onClick}>
+    <button onClick={props.handleClick}>
       {props.text}
     </button>
   )
@@ -729,8 +729,8 @@ const Button = (props) => {
 We can use destructuring to get only the required fields from <i>props</i>, and use the more compact form of arrow functions:
 
 ```js
-const Button = ({ onClick, text }) => (
-  <button onClick={onClick}>
+const Button = ({ handleClick, text }) => (
+  <button onClick={handleClick}>
     {text}
   </button>
 )
@@ -739,7 +739,7 @@ const Button = ({ onClick, text }) => (
 We can simplify the Button component once more by declaring the return statement in just one line:
 
 ```js
-const Button = ({ onClick, text }) => <button onClick={onClick}>{text}</button>
+const Button = ({ handleClick, text }) => <button onClick={handleClick}>{text}</button>
 ```
 
 However, be careful to not oversimplify your components, as this makes adding complexity a more tedious task down the road.