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Semicolon before self-invoking function? [duplicate]
...: there isn't one! (Learn only one rule and you too can enjoy life without extra semicolons ;-)
Since I write in a semicolon-free style I thus always write it as (where the function-expression can naturally span multiple lines):
;(FunctionExpression)()
In my case it isn't about "safety" or try...
Android ListView with different layouts for each row
.../LinearLayout>
Then, we create the listview item. In our case, with a string and a type.
public class ListViewItem {
private String text;
private int type;
public ListViewItem(String text, int type) {
this.text = text;
this.type = type;
...
How can I multiply all items in a list together with Python?
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@wordsforthewise probably it's that going through an extra function (lambda) adds overhead, whereas operator.mul goes straight to C.
– whereswalden
Nov 9 '15 at 20:32
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
...ent = Android.App.Fragment;
namespace Support4
{
[Activity (Label = "@string/fragment_pager_support")]
[IntentFilter (new[]{Intent.ActionMain}, Categories = new[]{ "mono.support4demo.sample" })]
public class FragmentPagerSupport : Activity
//public class FragmentPagerSupport : Fragm...
Difference between @OneToMany and @ElementCollection?
...lection is not a collection of entities, but a collection of simple types (Strings, etc.) or a collection of embeddable elements (class annotated with @Embeddable).
It also means that the elements are completely owned by the containing entities: they're modified when the entity is modified, deleted...
NullPointerException accessing views in onCreate()
...ue"
android:layout_marginTop="30dp"
android:text="@string/hello"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"/>
<Button
android:id="@+id/example_button_two"
android:layout_width="wrap_conten...
JS strings “+” vs concat method [duplicate]
I have some experience with Java and I know that strings concatenation with "+" operator produces new object.
5 Answers
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Postgresql SELECT if string contains
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A proper way to search for a substring is to use position function instead of like expression, which requires escaping %, _ and an escape character (\ by default):
SELECT id FROM TAG_TABLE WHERE position(tag_name in 'aaaaaaaaaaa')>0;
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Faster way to develop and test print stylesheets (avoid print preview every time)?
...t the same view as provided in print preview - espacially when it comes to extra whitespace - make sure, your print preview in not different after you're done with this substep.
– jave.web
May 12 '17 at 2:14
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Using LIMIT within GROUP BY to get N results per group?
... on the rate column instead of the year column.
The maximum length of the string returned by GROUP_CONCAT is limited, so this works well if you need to select a few records for every group.
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