Tutorial by Examples: u

var path = "/test_javascript_upload.txt"; var content = "data to upload"; var accessToken = "<ACCESS_TOKEN>"; var uploadUrl = "https://content.dropboxapi.com/2/files/upload" var result; var xhr = new XMLHttpRequest(); xhr.onreadystatechange = fun...

To Retrieve URL path in STATIC BLOCK Or CMS pages To get SKIN URL {{skin url=’images/sampleimage.jpg’}} To get Media URL {{media url=’/sampleimage.jpg’}} To get Store URL {{store url=’mypage.html’}} To get Base URL {{base url=”}} TO Retrieve URL path in PHTML Not secure Skin URL &...

If you have a greedy match as the first quantifier, the whole RE will be greedy, If you have non-greedy match as the first quantifier, the whole RE will be non-greedy. set mydata { Device widget1: port: 156 alias: input2 Device widget2: alias: input1 Device widget3: port: 238 alias...

The regsub command is used for regular expression matching and substitution. set mydata {The yellow dog has the blues.} # create a new string; only the first match is replaced. set newdata [regsub {(yellow|blue)} $mydata green] puts $newdata The green dog has the blues. # replace the data in t...

# example data DT = data.table(id = c(1,2,2,3,3,3))[, v := LETTERS[.I]][] To deal with "duplicates," combine counting rows in a group and subsetting rows by group. Keep one row per group Aka "drop duplicates" aka "deduplicate" aka "uniquify." unique(DT,...

TestSubscribers allow you to avoid the work creating your own Subscriber or subscribe Action<?> to verify that certain values where delivered, how many there are, if the Observable completed, an exception was raised and a whole lot more. Getting Started This example just shows an assertion...

There are many examples where backticks are used inside a query but for many it's still unclear when or where to use backticks ``. Backticks are mainly used to prevent an error called "MySQL reserved word". When making a table in PHPmyAdmin you are sometimes faced with a warning or alert ...

A bit field is a variable that holds various boolean states as individual bits. A bit on would represent true, and off would be false. In the past bit fields were routinely used as they saved memory and reduced processing load. Though the need to use bit field is no longer so important they do offer...

Literals in RDF may be language tagged strings. These literals have a text part as well as a language tag. For instance, the literal "color"@en has the text part "color" and the language tag "en". In a SPARQL query, use the lang function to get the language of a lite...

The SPARQL function langMatches can be used to compare the language tags of RDF literals in SPARQL queries. The simple equality operator, =, can be used to compare exact string matches, but will not correctly consider regional variants. For instance, the four possible values of ?str in: values ...

Even with identical tokens for inline functions, ODR can be violated if lookup of names doesn't refer to the same entity. let's consider func in following: header.h void overloaded(int); inline void func() { overloaded('*'); } foo.cpp #include "header.h" void foo() { ...

You may use this command for listing the files for your own debuggable apk: adb shell run-as <sample.package.id> ls /data/data/sample.package.id/cache And this script for pulling from cache, this copy the content to sdcard first, pull and then remove it at the end: #!/bin/sh adb shell &q...

Given the tab-separated file employee.txt 1 \t Arthur Dent 2 \t Marvin 3 \t Zaphod Beeblebrox $ mysql --user=user --password=password mycompany -e 'CREATE TABLE employee(id INT, name VARCHAR(100), PRIMARY KEY (id))' $ mysqlimport --user=user --password=password mycompany employee.txt ...

Given the text file employee.txt 1|Arthur Dent 2|Marvin 3|Zaphod Beeblebrox $ mysqlimport --fields-terminated-by='|' mycompany employee.txt

This example is useful for windows-like endings: $ mysqlimport --lines-terminated-by='\r\n' mycompany employee.txt

Given the table Employee idName3Yooden Vranx And the file employee.txt 1 \t Arthur Dent 2 \t Marvin 3 \t Zaphod Beeblebrox The --ignore option will ignore the entry on duplicate keys $ mysqlimport --ignore mycompany employee.txt idName1Arthur Dent2Marvin3Yooden Vranx The --replace opt...

The familiar curry :: ((a,b) -> c) -> a -> b -> c curry = \f a b -> f (a,b) function can be generalized to tuples of arbitrary arity, for example: curry3 :: ((a, b, c) -> d) -> a -> b -> c -> d curry4 :: ((a, b, c, d) -> e) -> a -> b -> c -> d -&gt...

Template Haskell is enabled by the -XTemplateHaskell GHC extension. This extension enables all the syntactic features further detailed in this section. The full details on Template Haskell are given by the user guide. Splices A splice is a new syntactic entity enabled by Template Haskell, writ...

The autocomplete feature in the Google Places API for Android provides place predictions to user. While user types in the search box, autocomplete shows places according to user's queries. AutoCompleteActivity.java private TextView txtSelectedPlaceName; @Override protected void onCreate(@Nulla...

When accessing a non-static member of an object through a pointer to member, if the object does not actually contain the member denoted by the pointer, the behavior is undefined. (Such a pointer to member can be obtained through static_cast.) struct Base { int x; }; struct Derived : Base { int y; ...