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How to get label of select option with jQuery?
...ols.com/tags/att_option_label.asp#gsc.tab=0 and w3.org/TR/html401/interact/forms.html#h-17.6
– Scott Stafford
Apr 2 '13 at 18:47
3
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
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+1 for pointing out the live node list distinction. That's an extremely important difference to be aware of depending on how you intend to use the results.
– jmbpiano
Mar 3 '16 at 16:19
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Leaflet - How to find existing markers, and delete markers?
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You can also push markers into an array. See code example, this works for me:
/*create array:*/
var marker = new Array();
/*Some Coordinates (here simulating somehow json string)*/
var items = [{"lat":"51.000","lon":"13.000"},{"lat":"52.000","lon":"13.010"},{"lat":"52.000","lon":"13.020"}];
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How to join two sets in one line without using “|”
...ing the join operator | , how can I find the union of the two sets? This, for example, finds the intersection:
8 Answers
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...HAR(3) NOT NULL,
CourseSec CHAR(1) NOT NULL,
);
ALTER TABLE Courses
ADD FOREIGN KEY (CatCode)
REFERENCES Categories(Code)
ON DELETE CASCADE;
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Android draw a Horizontal line between views
...o much? It should use android:background="?android:attr/dividerHorizontal" for example.
– Roel
Feb 1 '16 at 15:03
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ROW_NUMBER() in MySQL
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I want the row with the single highest col3 for each (col1, col2) pair.
That's a groupwise maximum, one of the most commonly-asked SQL questions (since it seems like it should be easy, but actually it kind of isn't).
I often plump for a null-self-join:
SELECT t0.co...
How do you make a LinearLayout scrollable?
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Wrap the linear layout with a <ScrollView>
See here for an example:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/a...
How to push both value and key into PHP array
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Nope, there is no array_push() equivalent for associative arrays because there is no way determine the next key.
You'll have to use
$arrayname[indexname] = $value;
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Specifying column name in a “references” migration
...ave to modify it, so now you have to call
def post
belongs_to :user, :foreign_key => 'author_id'
end
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