Tutorial by Examples: t

Swift Bitwise operators allow you to perform operations on the binary form of numbers. You can specify a binary literal by prefixing the number with 0b, so for example 0b110 is equivalent to the binary number 110 (the decimal number 6). Each 1 or 0 is a bit in the number. Bitwise NOT ~: var number...

Overflow refers to what happens when an operation would result in a number that is either larger or smaller than the designated amount of bits for that number may hold. Due to the way binary arithmetic works, after a number becomes too large for its bits, the number overflows down to the smallest p...

Just run: svn delete https://svn.example.com/svn/MyRepo/MyProject/branches/MyNewBranch -m "Deleting no longer needed MyNewBranch" Or, using the short URL: svn delete ^/branches/MyNewBranch -m "Deleting no longer needed MyNewBranch" In Windows, you need to use ^^ You ...

JasperSoft Studio In Preview, run report by clicking green arrow, if no errors the export menu will be enable, click the export button (disk image) and select "Export As Pdf"

To export a you need to fill the report to get the JasperPrint object. Export single JasperPrint (single jrxml) to file // 1. Create exporter instance JRPdfExporter exporter = new JRPdfExporter(); // 2. Set exporter input document exporter.setExporterInput(new SimpleExporterInput(jasperPrint)...

A sprite sheet by definition is a bitmap that contains a certain animation. Old games use grid type sprite sheet, that is, every frame occupies an equal region, and frames are aligned by the edges to form a rectangle, probably with some spaces unoccupied. Later, in order to minimize the bitmap size,...

services/my.service.ts import { Injectable } from '@angular/core'; @Injectable() export class MyService { data: any = [1, 2, 3]; getData() { return Promise.resolve(this.data); } } getData() now acts likes a REST call that creates a Promise, which gets resolved imme...

Using unserialize function to unserialize data from user input can be dangerous. A Warning from php.net Warning Do not pass untrusted user input to unserialize(). Unserialization can result in code being loaded and executed due to object instantiation and autoloading, and a malicious user may ...

The Singleton pattern is designed to restrict creation of a class to exactly one single instance. This pattern is used in a scenario where it makes sense to have only one of something, such as: a single class that orchestrates other objects' interactions, ex. Manager class or one class that rep...

Detailed instructions on getting iOS 9 set up or installed.

A LEFT OUTER JOIN performs a join between two tables that requires an explicit join clause but does not exclude unmatched rows from the first table. Example: SELECT ENAME, DNAME, ...

A RIGHT OUTER JOIN performs a join between two tables that requires an explicit join clause but does not exclude unmatched rows from the second table. Example: SELECT ENAME, DNAME, ...

A FULL OUTER JOIN performs a join between two tables that requires an explicit join clause but does not exclude unmatched rows in either table. In other words, it returns all the rows in each table. Example: SELECT * ...

An antijoin returns rows from the left side of the predicate for which there are no corresponding rows on the right side of the predicate. It returns rows that fail to match (NOT IN) the subquery on the right side. SELECT * FROM employees WHERE department_id NOT IN (SELECT department_id F...

reduce(_:combine:) can be used in order to combine the elements of a sequence into a single value. It takes an initial value for the result, as well as a closure to apply to each element – which will return the new accumulated value. For example, we can use it to sum an array of numbers: let numbe...

Normal Update UPDATE TESTTABLE SET TEST_COLUMN= 'Testvalue',TEST_COLUMN2= 123 WHERE EXISTS (SELECT MASTERTABLE.TESTTABLE_ID FROM MASTERTABLE WHERE ID_NUMBER=11);

Using Inline View (If it is considered updateable by Oracle) Note: If you face a non key preserved row error add an index to resolve the same to make it update-able UPDATE (SELECT TESTTABLE.TEST_COLUMN AS OLD, 'Testvalue' AS NEW FROM TESTTA...

Using Merge MERGE INTO TESTTABLE USING (SELECT T1.ROWID AS RID, T2.TESTTABLE_ID FROM TESTTABLE T1 INNER JOIN MASTERTABLE T2 ON TESTTABLE.TESTTABLE_ID = MASTERTABLE.TESTTABLE_ID WHERE...

Sometimes the default Scrapy user agent ("Scrapy/VERSION (+http://scrapy.org)") is blocked by the host. To change the default user agent open settings.py, uncomment and edit the following line to what ever you want. #USER_AGENT = 'projectName (+http://www.yourdomain.com)' For example ...

Reading line by line awk '/^>/ {printf("%s%s\t",(N>0?"\n":""),$0);N++;next;} {printf("%s",$0);} END {printf("\n");}' < input.fa one can read this awk script as: if the current line ($0) starts like a fasta header (^>). Then we prin...