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Is there a Python Library that contains a list of all the ascii characters?
...mport string
>>> string.ascii_uppercase
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
If you want all printable characters:
>>> string.printable
'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;?@[\\]^_`{|}~ \t\n\r\x0b\x0c'
...
Releasing memory in Python
...ubject to high-water marks. This is complicated by Python's internal optimizations for allocating small objects (PyObject_Malloc) in 4 KiB pools, classed for allocation sizes at multiples of 8 bytes -- up to 256 bytes (512 bytes in 3.3). The pools themselves are in 256 KiB arenas, so if just one blo...
Microsecond timing in JavaScript
.... Notably, if the OS's system time is updated (e.g. atomic clock synchronization), Date.getTime() is also updated. now() is guaranteed to always be monotonically increasing, so it is not affected by the OS's system time -- it will always be wall-clock time (assuming your wall clock is not atomic.....
Optimise PostgreSQL for fast testing
...page_cost reflect your system's performance, ensure your effective_cache_size is correct, etc. Use EXPLAIN (BUFFERS, ANALYZE) to examine individual query plans, and turn the auto_explain module on to report all slow queries. You can often improve query performance dramatically just by creating an ap...
Eclipse Workspaces: What for and why?
...l Eyng
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Why shouldn't all functions be async by default?
... of your operations are high latency, and those operations are causing the zombie infestation of async throughout the code.
if performance is the sole problem, surely some clever optimizations can remove the overhead automatically when it's not needed.
In theory, theory and practice are simila...
Multi-gradient shapes
... = new ShapeDrawable.ShaderFactory() {
@Override
public Shader resize(int width, int height) {
LinearGradient lg = new LinearGradient(0, 0, width, height,
new int[]{Color.GREEN, Color.GREEN, Color.WHITE, Color.WHITE},
new float[]{0,0.5f,.55f,1}, Shader.TileMod...
Spring DAO vs Spring ORM vs Spring JDBC
...no definitive mapping from one provider to the other. Relying on this is hazardous.
This is however a good idea to annotate your DAOs with @Repository, as the beans will be automatically added by the scan procedure. Further, Spring may add other useful features to the annotation.
Spring-JDBC
Spri...
How does having a dynamic variable affect performance?
...ts up a special version of the C# compiler that just has the metadata analyzer, the semantic analyzer for expressions, and an emitter that emits Expression Trees instead of IL.
The metadata analyzer uses Reflection to determine the type of the object in d1, and then passes that to the semantic ana...
Breadth First Vs Depth First
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