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This commit is contained in:
Ilya Kantor 2019-05-05 08:16:32 +02:00
parent 1ba420f511
commit 1e99f7d57f
2 changed files with 7 additions and 11 deletions
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4
1-js/03-code-quality/01-debugging-chrome/article.md
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@ -20,7 +20,7 @@ Here's what you should see if you are doing it for the first time:
The toggler button <span class="devtools" style="background-position:-168px -76px"></span> opens the tab with files.
Let's click it and select `index.html` and then `hello.js` in the tree view. Here's what should show up:
Let's click it and select `hello.js` in the tree view. Here's what should show up:
![](chrome-tabs.png)
@ -34,7 +34,7 @@ Now you could click the same toggler <span class="devtools" style="background-po
## Console
If we press `Esc`, then a console opens below. We can type commands there and press `key:Enter` to execute.
If we press `key:Esc`, then a console opens below. We can type commands there and press `key:Enter` to execute.
After a statement is executed, its result is shown below.

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3-frames-and-windows/01-popup-windows/article.md
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@ -52,15 +52,11 @@ The difference is that Firefox treats a timeout of 2000ms or less are acceptable
## Modern usage
As of now, we have many methods to load and show data on-page with JavaScript. But there are still situations when a popup works best.
As of now, we have many methods to load and show data on-page with JavaScript. But there are still situations when a popup works good, because:
For instance, many shops use online chats for consulting people. A visitor clicks on the button, it runs `window.open` and opens the popup with the chat.
Why a popup is good here, why not in-page?
1. A popup is a separate window with its own independent JavaScript environment. So a chat service doesn't need to integrate with scripts of the main shop site.
2. A popup is very simple to attach to a site, little to no overhead. It's only a small button, without additional scripts.
3. A popup may persist even if the user left the page. For example, a consult advices the user to visit the page of a new "Super-Cooler" goodie. The user goes there in the main window without leaving the chat.
1. A popup is a separate window with its own independent JavaScript environment. So opening a popup with a third-party non-trusted site is safe.
2. It's very easy to open a popup, little to no overhead.
3. A popup may persist even if the user left the page. In also can navigate (change URL) in the opener window.
## window.open
@ -118,7 +114,7 @@ Most browsers show the example above as required.
Rules for omitted settings:
- If there is no 3rd argument in the `open` call, or it is empty, then the default window parameters are used.
- If there is a string of params, but some yes/no features are omitted, then the omitted features are disabled, if the browser allows that. So if you specify params, make sure you explicitly set all required features to yes.
- If there is a string of params, but some `yes/no` features are omitted, then the omitted features assumed to have `no` value. So if you specify params, make sure you explicitly set all required features to yes.
- If there is no `left/top` in params, then the browser tries to open a new window near the last opened window.
- If there is no `width/height`, then the new window will be the same size as the last opened.