📝 Add explanations about how variables are evaluated in code

Closes #390

apps/docs/docs/editor/blocks/logic/script.md

@@ -1,4 +1,4 @@
-# Script
+# Script block
 
 The "Script" block allows you to execute Javascript code. If you want to set a variable value with Javascript, use the [Set variable block](./set-variable) instead.
 
@@ -6,6 +6,12 @@ The "Script" block allows you to execute Javascript code. If you want to set a v
 
 <img src="/img/blocks/logic/code.png" width="600" alt="Code block"/>
 
+:::note
+Variables in script are not parsed, they are evaluated. So it should be treated as if it were real javascript variables.
+
+You need to write `console.log({{My variable}})` instead of `console.log("{{My variable}}")`
+:::
+
 ## Examples
 
 ### Reload page
@@ -14,16 +20,12 @@ The "Script" block allows you to execute Javascript code. If you want to set a v
 window.location.reload()
 ```
 
-### Post a message to parent
+### Redirect if a variable has a specific value
 
 ```js
-postMessage('hello there!', '*')
-```
-
-Then on your parent website, you could listen for those messages:
-
-```js
-addEventListener('message', ({ data }) => console.log(data))
+if({{Category}} === 'qualified') {
+  window.location.href = 'https://my-site.com'
+}
 ```
 
 Do you need to do something but you're not sure how to? [Ask the community for help!](https://www.facebook.com/groups/typebot)

apps/docs/docs/editor/blocks/logic/set-variable.md

@@ -83,32 +83,8 @@ Or a random ID:
 Math.round(Math.random() * 1000000)
 ```
 
-## Current URL
-
-A popular request also is to set a variable to the current URL. Here is the value that should be inserted:
-
-```js
-window.location.href
-```
-
-:::caution
-It will not give you the parent URL if you embed the bot on your site.
-A more bulletproof option is to pass the URL as a prefilled variable in the embed code options. You can find an example [here](/embed/html-javascript#additional-configuration).
+:::note
+Keep in mind that the code is executed on the server. So you don't have access to browser variables such as `window` or `document`.
 :::
 
-## Extract a cookie
-
-This code allows you to extract the value of a cookie called "my_cookie":
-
-```js
-const getCookie = (name) => {
-  const value = `; ${document.cookie}`
-  const parts = value.split(`; ${name}=`)
-  if (parts.length === 2) return parts.pop().split(';').shift()
-  return 'not found'
-}
-
-return getCookie('my_cookie')
-```
-
-As you can see the code can also be multi-line. The Set variable block will get the value following the `return` statement.
+The code can also be multi-line. The Set variable block will get the value following the `return` statement.