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How to parse JSON to receive a Date object in JavaScript?
...eTime at all; just send an RFC 1123 date string ToString("r") or a seconds-from-Unix-epoch number, or something else that you can use in the JavaScript to construct a Date.
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How to convert a NumPy array to PIL image applying matplotlib colormap
...scale to the 0-255 range.
Convert to integers, using np.uint8().
Use Image.fromarray().
And you're done:
from PIL import Image
from matplotlib import cm
im = Image.fromarray(np.uint8(cm.gist_earth(myarray)*255))
with plt.savefig():
with im.save():
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How to change the ROOT application?
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There are three methods:
First shutdown your Tomcat from the its bin directory (sh shutdown.sh). Then delete all the content of your Tomcat webapps folder (rm -fr *). Then rename your WAR file to ROOT.war, and finally start your Tomcat from the bin directory (sh startup.sh).
L...
Java Logging vs Log4J [closed]
...nvironment? Does your configuration sound something like, "Severe messages from this class get sent via e-mail to the support guy; severe messages from a subset of classes get logged to a syslog deamon on our server; warning messages from another subset of classes get logged to a file on network dri...
Java Ordered Map
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From java 8 doc. LinkedHashMap whose order of iteration is the order in which its entries were last accessed
– TRiNE
May 15 '19 at 9:45
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java get file size efficiently
...ecessarily the same amount of bytes as file length. To get the real length from a stream, you really need to read it (and count the read bytes meanwhile).
– BalusC
Nov 26 '09 at 13:51
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Does a foreign key automatically create an index?
... tables.
Foreign key columns are often used in join criteria when the data from related tables is combined in queries by matching the column(s) in the FOREIGN KEY constraint of one table with the primary or unique key column(s) in the other table. An index allows Microsoft® SQL Server™ 2000 to fi...
What is a “static” function in C?
...nit, below the first declaration of that name. The function may be called from other units (and earlier parts of the same unit) via other means, e.g. a function pointer.
– M.M
Nov 30 '15 at 2:38
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Can JSON start with “[”?
From what I can read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON.
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A semantics for Bash scripts?
...rd splitting) and C (much of the shell's arithmetic syntax semantics comes from C).
The other root of the shell's syntax comes from its upbringing as a mishmash of individual UNIX utilities. Most of what are often builtins in the shell can actually be implemented as external commands. It throws man...