merging all conflicts

Author: iliakan

1-js/01-getting-started/1-intro/article.md

@@ -74,8 +74,15 @@ Contoh sekatan tersebut termasuk:
 
     Ini dipanggil "Dasar Asal Sama". Untuk mengatasinya, *kedua-dua halaman* mesti bersetuju untuk pertukaran data dan mesti mengandungi kod JavaScript khas yang mengendalikannya. Kami akan membincangkannya dalam tutorial.
 
+<<<<<<< HEAD
     Had ini, sekali lagi, untuk keselamatan pengguna. Halaman daripada `http://anysite.com` yang dibuka oleh pengguna mestilah tidak boleh mengakses tab penyemak imbas lain dengan URL `http://gmail.com`, sebagai contoh, dan mencuri maklumat dari sana.
 - JavaScript boleh berkomunikasi dengan mudah melalui jaring ke pelayan tempat asal halaman semasa. Tetapi keupayaannya untuk menerima data daripada tapak/domain lain adalah lumpuh. Walaupun boleh, ia memerlukan persetujuan yang jelas (dinyatakan dalam pengepala HTTP) dari bahagian jauh. Sekali lagi, itu adalah had keselamatan.
+=======
+    This is called the "Same Origin Policy". To work around that, *both pages* must agree for data exchange and must contain special JavaScript code that handles it. We'll cover that in the tutorial.
+
+    This limitation is, again, for the user's safety. A page from `http://anysite.com` which a user has opened must not be able to access another browser tab with the URL `http://gmail.com`, for example, and steal information from there.
+- JavaScript can easily communicate over the net to the server where the current page came from. But its ability to receive data from other sites/domains is severely limited. Though possible, it requires explicit agreement (expressed in HTTP headers) from the remote side. Once again, that's a safety limitation.
+>>>>>>> 20208769e528337949e946f526534d61d38bac47
 
 ![](limitations.svg)
 

1-js/02-first-steps/15-function-basics/4-pow/solution.md

@@ -10,8 +10,8 @@ function pow(x, n) {
   return result;
 }
 
-let x = prompt("x?", '');
-let n = prompt("n?", '');
+let x = +prompt("x?", '');
+let n = +prompt("n?", '');
 
 if (n < 1) {
   alert(`Power ${n} is not supported, use a positive integer`);

2-ui/99-ui-misc/01-mutation-observer/article.md

@@ -128,13 +128,13 @@ Such snippet in an HTML markup looks like this:
 ...
 ```
 
-For better readability and at the same time, to beautify it, we'll be using a JavaScript syntax highlighting library on our site, like [Prism.js](https://prismjs.com/). To get syntax highlighting for above snippet in Prism, `Prism.highlightElem(pre)` is called, which examines the contents of such `pre` elements and adds special tags and styles for colored syntax highlighting into those elements, similar to what you see in examples here, on this page.
+For better readability and at the same time, to beautify it, we'll be using a JavaScript syntax highlighting library on our site, like [Prism.js](https://prismjs.com/). To get syntax highlighting for above snippet in Prism, `Prism.highlightElement(pre)` is called, which examines the contents of such `pre` elements and adds special tags and styles for colored syntax highlighting into those elements, similar to what you see in examples here, on this page.
 
-When exactly should we run that highlighting method? Well, we can do it on `DOMContentLoaded` event, or put the script at the bottom of the page. The moment our DOM is ready, we can search for elements `pre[class*="language"]` and call `Prism.highlightElem` on them:
+When exactly should we run that highlighting method? Well, we can do it on `DOMContentLoaded` event, or put the script at the bottom of the page. The moment our DOM is ready, we can search for elements `pre[class*="language"]` and call `Prism.highlightElement` on them:
 
 ```js
 // highlight all code snippets on the page
-document.querySelectorAll('pre[class*="language"]').forEach(Prism.highlightElem);
+document.querySelectorAll('pre[class*="language"]').forEach(elem => Prism.highlightElement(elem));
 ```
 
 Everything's simple so far, right? We find code snippets in HTML and highlight them.
@@ -146,9 +146,9 @@ let article = /* fetch new content from server */
 articleElem.innerHTML = article;
 ```
 
-The new `article` HTML may contain code snippets. We need to call `Prism.highlightElem` on them, otherwise they won't get highlighted.
+The new `article` HTML may contain code snippets. We need to call `Prism.highlightElement` on them, otherwise they won't get highlighted.
 
-**Where and when to call `Prism.highlightElem` for a dynamically loaded article?**
+**Where and when to call `Prism.highlightElement` for a dynamically loaded article?**
 
 We could append that call to the code that loads an article, like this:
 
@@ -158,7 +158,7 @@ articleElem.innerHTML = article;
 
 *!*
 let snippets = articleElem.querySelectorAll('pre[class*="language-"]');
-snippets.forEach(Prism.highlightElem);
+snippets.forEach(elem => Prism.highlightElement(elem));
 */!*
 ```