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How to test an Android Library Project
I am writing an Android Library Project basing on Android Bitmap class (call it AndroindLib) which contains only utility class (no activity). I tried to test it using Android JUnit, but it keeps complaining that can't find the AnroidLib.apk
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How to add/update an attribute to an HTML element using JavaScript?
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What seems easy is actually tricky if you want to be completely compatible.
var e = document.createElement('div');
Let's say you have an id of 'div1' to add.
e['id'] = 'div1';
e.id = 'div1';
e.attributes['id'] = 'div1';
e.createAttribute('id','di...
Which data type for latitude and longitude?
...y) which can be your lat / long. Occupies 16 bytes: 2 float8 numbers internally.
Or make it two columns of type float (= float8 or double precision). 8 bytes each.
Or real (= float4) if additional precision is not needed. 4 bytes each.
Or even numeric if you need absolute precision. 2 bytes for eac...
How do I do a bulk insert in mySQL using node.js
...rays wrapped in an array
[ [ [...], [...], [...] ] ]
There is also a totally different node-msql package for bulk insertion
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adb command not found
...adb forward command before I could use the ezkeyboard application which allows user to type on the phone using browser.
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How to commit no change and new message?
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There's rarely a good reason to do this, but the parameter is --allow-empty for empty commits (no files changed), in contrast to --allow-empty-message for empty commit messages. You can also read more by typing git help commit or visiting the online documentation.
While the tree object (w...
Is mathematics necessary for programming? [closed]
...m high school or fresh year college math, no more no less, and that almost all of programming tasks can be achieved without even need for advanced math. He argued, however, that algorithms are fundamental & must-have asset for programmers.
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Node.js Error: Cannot find module express
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You need to install Express locally into the context of your application (node_modules folder):
$ npm install express
The reason for this is that applications always look in their local context for any dependencies. The global installatio...
Java 8 List into Map
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Using (statically imported) Seq from the JOOL library (which I'd recommend to anyone using Java 8), you can also improve the brevity with: seq(choices).toMap(Choice::getName)
– lukens
Mar 18 '17 at ...
When should I use cross apply over inner join?
...r
),
t AS
(
SELECT 1 AS id
UNION ALL
SELECT 2
)
SELECT *
FROM t
JOIN q
ON q.rn <= t.id
runs for almost 30 seconds, while this one:
WITH t AS
(
SELECT 1 AS id
UNION ALL
SELECT 2
...