Tutorial by Examples: e

This analyzes a python script and, for each defined function, reports the line number where the function began, where the signature ends, where the docstring ends, and where the function definition ends. #!/usr/local/bin/python3 import ast import sys """ The data we collect. ...

When we use @SpringApplicationConfiguration it will use configuration from application.yml [properties] which in certain situation is not appropriate. So to override the properties we can use @TestPropertySource annotation. @TestPropertySource( properties = { "spring...

1-You need to connect your device to your computer via USB cable. Make sure USB debugging is working. You can check if it shows up when running adb devices(or tns device). 2-Run adb tcpip 5555 3-Disconnect your device (remove the USB cable). 4-Go to the Settings -> About phone -> Status...

In order to compare query sequences against reference sequences, you must create a blastdb of your reference(s). This is done using makeblastdb which is included when you install blast. makeblastdb -in <input fasta> -dbtype nucl -out <label for database> So if you had a file referen...

You can extract fasta sequence from a blastdb constructed from a fasta file using blastdbcmd which should be installed when you install makeblastdb. blastdbcmd -entry all -db <database label> -out <outfile> If you had a database called my_database which contained the files my_databas...

The [[maybe_unused]] attribute is created for indicating in code that certain logic might not be used. This if often linked to preprocessor conditions where this might be used or might not be used. As compilers can give warnings on unused variables, this is a way of suppressing them by indicating in...

The same example above, Image loading, can be written using async functions. This also allows using the common try/catch method for exception handling. Note: as of April 2017, the current releases of all browsers but Internet Explorer supports async functions. function loadImage(url) { return...

Detailed instructions on getting qlikview set up or installed.

While working on the development of an R package it is often necessary to install the latest version of the package. This can be achieved by first building a source distribution of the package (on the command line) R CMD build my_package and then installing it in R. Any running R sessions with p...

The getaddrinfo() function is the recommended POSIX function for interfacing with the system resolver. Depending on system configuration it will perform name lookups in the DNS, /etc/hosts, mDNS, etc. It is preferred over the deprecated gethostbyname() family of functions because it supports both ...

Description The SQL standard provides two additional aggregate operators. These use the polymorphic value "ALL" to denote the set of all values ​​that an attribute can take. The two operators are: with data cube that it provides all possible combinations than the argument attributes o...

The method charCodeAt retrieves the Unicode character code of a single character: var charCode = "µ".charCodeAt(); // The character code of the letter µ is 181 To get the character code of a character in a string, the 0-based position of the character is passed as a parameter to charCo...

A table that is partitioned by range is partitioned in such a way that each partition contains rows for which the partitioning expression value lies within a given range. Ranges should be contiguous but not overlapping, and are defined using the VALUES LESS THAN operator. For the next few examples, ...

The UNION operator is used to combine the result-set (only distinct values) of two or more SELECT statements. Query: (To selects all the different cities (only distinct values) from the "Customers" and the "Suppliers" tables) SELECT City FROM Customers UNION SELECT City FROM ...

UNION ALL to select all(duplicate values also) German cities from the "Customers" and "Suppliers" tables. Here Country="Germany" is to be specified in the where clause. Query: SELECT City, Country FROM Customers WHERE Country='Germany' UNION ALL SELECT City, Count...

Full width table cell background images <html xmlns:v="urn:schemas-microsoft-com:vml"> <head> <style> v:* { behavior: url(#default#VML); display: inline-block; } </style> </head> <body> <center> <...

Some email clients (notably Windows Desktop Outlook) collapse tables with no content, even if there are dimensions or padding. To prevent these clients from collapsing the spacer table, you can add an invisible   that serves as content. Then zero out the character's font-size and line-heig...