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What characters are allowed in an email address?
...is not allowed but "John..Doe"@example.com is allowed);
space and "(),:;<>@[\] characters are allowed with restrictions (they are only allowed inside a quoted string, as described in the paragraph below, and in addition, a backslash or double-quote must be preceded by a backslash);
comment...
CSS Child vs Descendant selectors
...orrect. div p will match the following example, but div > p will not.
<div><table><tr><td><p> <!...
The first one is called descendant selector and the second one is called child selector.
...
javax.faces.application.ViewExpiredException: View could not be restored
...thrown whenever the javax.faces.STATE_SAVING_METHOD is set to server (default) and the enduser sends a HTTP POST request on a view via <h:form> with <h:commandLink>, <h:commandButton> or <f:ajax>, while the associated view state isn't available in the session anymore.
The v...
Bold words in a string of strings.xml in Android
...
You could basically use html tags in your string resource like:
<resource>
<string name="styled_welcome_message">We are <b><i>so</i></b> glad to see you.</string>
</resources>
And use Html.fromHtml or use spannable, check the link I pos...
How to implement a tree data-structure in Java? [closed]
...
Here:
public class Tree<T> {
private Node<T> root;
public Tree(T rootData) {
root = new Node<T>();
root.data = rootData;
root.children = new ArrayList<Node<T>>();
}
public stati...
Combine multiple Collections into a single logical Collection?
...
With Guava, you can use Iterables.concat(Iterable<T> ...), it creates a live view of all the iterables, concatenated into one (if you change the iterables, the concatenated version also changes). Then wrap the concatenated iterable with Iterables.unmodifiableIterable(I...
More than 10 lines in a node.js stack error?
...ment variable, e.g. NODE_OPTIONS='--stack-trace-limit=10000' /path/to/some-script. Useful if you're not invoking node directly.
– Bluu
Sep 5 '18 at 5:30
add a comment
...
Changing overflow icon in the action bar
... can with a style, but you have to add it to the main Theme declaration.
<resources>
<!-- Base application theme. -->
<style name="Your.Theme" parent="@android:style/Theme.Holo">
<!-- Pointer to Overflow style ***MUST*** go here or it will not work -->
...
What is this operator in MySQL?
...operator.
Like the regular = operator, two values are compared and the result is either 0 (not equal) or 1 (equal); in other words: 'a' <=> 'b' yields 0 and 'a' <=> 'a' yields 1.
Unlike the regular = operator, values of NULL don't have a special meaning and so it never yields NULL as a p...
How to make a in Bootstrap look like a normal link in nav-tabs?
...re normal links. Not just any normal links, though; these are going in a <ul class="nav nav-tabs nav-stacked"> container. The markup will end up like this:
...