New Crowdin updates (#109)

* New translations javascript-runtime.md (French)

* New translations javascript-runtime.md (Portuguese)

* New translations javascript-runtime.md (Chinese Simplified)

Author: ysmood

i18n/fr-FR/javascript-runtime.md

@@ -10,7 +10,7 @@ For example use `Page.Eval` to set global value:
 page.MustEval(`() => window.a = {name: 'jack'}`)
 ```
 
-We can use a js function to pass value as json arguments:
+We can use the arguments of the js function to receive golang variables, here's how we get the `key` and `data` from golang and set it to the page's window object `k`:
 
 ```go
 key := "a"
@@ -27,6 +27,12 @@ val := page.MustEval(`() => a`).Get("name").Str()
 fmt.Println(val) // output: jack
 ```
 
+`Eval` only accepts js function, code like below won't work:
+
+```go
+page.MustEval(`a`) // will fail
+```
+
 ## Eval on an element
 
 `Element.Eval` is similar with `Page.Eval`, but with the `this` object set to the current element. For example, we have a `<button>Submit</button>` on the page, we can read or modify the element with JS:

i18n/pt-PT/javascript-runtime.md

@@ -10,7 +10,7 @@ Por exemplo, use `Page. Eval` para definir o valor global:
 page. MustEval(`() => window.a = {name: 'jack'}`)
 ```
 
-Podemos usar uma função js para passar valor como argumentos json:
+We can use the arguments of the js function to receive golang variables, here's how we get the `key` and `data` from golang and set it to the page's window object `k`:
 
 ```go
 chave := "a"
@@ -27,6 +27,12 @@ val := page. MustEval(`() => a`). Get("name"). Str()
 fmt. Println(val) // output: jack
 ```
 
+`Eval` only accepts js function, code like below won't work:
+
+```go
+page.MustEval(`a`) // will fail
+```
+
 ## Eval on an element
 
 `Element. Eval` is similar with `Page. Eval`, but with the `this` object set to the current element. For example, we have a `<button>Submit</button>` on the page, we can read or modify the element with JS:

i18n/zh-CN/javascript-runtime.md

@@ -10,7 +10,7 @@
 page.MustEval(`() => window.a = {name: 'jack'}`)
 ```
 
-我们可以使用 js 函数来把值作为 json 参数传递：
+我们可以使用 js 函数的参数来获取 golang 变量， 这是如何从 golang 中获取 `key` 和 `data` 数据并将其设置为页面 window 上的对象 `k`
 
 ```go
 key := "a"
@@ -27,6 +27,12 @@ val := page.MustEval(`() => a`).Get("name").Str()
 fmt.Println(val) // output: jack
 ```
 
+`Eval` 只接受 js 函数，如下代码是无效的:
+
+```go
+page.MustEval(`a`) // 将失败
+```
+
 ## 在元素上 eval
 
 `Element.Eval` 和 `Page.Eval` 类似，但是对于前者来说，`this` 对象代表当前元素。 例如在页面上有一个 `<button>Submit</button>` ，我们可以用 JS 来读取或修改元素：