Tutorial by Examples: re

In a const-correct class, all member functions which don't change logical state have this cv-qualified as const, indicating that they don't modify the object (apart from any mutable fields, which can freely be modified even in const instances); if a const cv-qualified function returns a reference, t...
In a const-correct function, all passed-by-reference parameters are marked as const unless the function directly or indirectly modifies them, preventing the programmer from inadvertently changing something they didn't mean to change. This allows the function to take both const and non-cv-qualified ...
Consider 2 MySQL Servers for replication setup, one is a Master and the other is a Slave. We are going to configure the Master that it should keep a log of every action performed on it. We are going to configure the Slave server that it should look at the log on the Master and whenever changes happ...
Whenever there is an error while running a query on the slave, MySQL stop replication automatically to identify the problem and fix it. This mainly because an event caused a duplicate key or a row was not found and it cannot be updated or deleted. You can skip such errors, even if this is not recomm...
@theme("reindeer")
In SuiteScript 1.0, use nlobjContext.getRemainingUsage() to retrieve the remaining units. An nlobjContext reference is retrieved using the global nlapiGetContext function. // 1.0 var context = nlapiGetContext(); nlapiLogExecution("DEBUG", "Governance Monitoring", "Remai...
Typically trying to extend the parent like so: .parent { style: value; @extend &; } Will result in an error, stating that the parent cannot be extended. This makes sense, but there's a workaround. Simply store the parent selector in a variable. .parent { $parent: &; style...
// Record type Ribbon = {Length:int} // Class type Line(len:int) = member x.Length = len type IHaveALength = abstract Length:int let inline getLength s = (^a: (member Length: _) s) let ribbon = {Length=1} let line = Line(3) let someLengthImplementer = { new IHaveALength wit...
One of the more useful things about const correctness is that it serves as a way of documenting code, providing certain guarantees to the programmer and other users. These guarantees are enforced by the compiler due to constness, with a lack of constness in turn indicating that code doesn't provide...
<?php $parameters = array('path' => '/test.txt'); $headers = array('Authorization: Bearer <ACCESS_TOKEN>', 'Content-Type: application/json'); $curlOptions = array( CURLOPT_HTTPHEADER => $headers, CURLOPT_POST => true, CURLOPT_PO...
Background: The Household entity includes a set of options, each of which is an entity that is managed in an admin backend. Each option has a boolean enabled flag. If a previously enabled option is set to disabled it will need to be persisted in later Household edits, but cannot be edited away. T...
->add('housing', EntityType::class, array( 'class' => 'AppBundle:Housing', 'choice_label' => 'housing', 'placeholder' => '', 'attr' => (in_array('Housing', $options['disabledOptions']) ? ['disabled' => 'disabl...
boost::replace_all(): #include <iostream> #include <string> #include <boost/algorithm/string.hpp> using namespace std; int main() { // String to replace characters in string str = "Darn you, Darn you to the 5th power!!!"; // Replace "Da...
// Create the request. NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"]]; // Specify that it will be a POST request request.HTTPMethod = @"POST"; // This is how we set header fields [request setValue:@&...
// Create the request. NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"]]; // Specify that it will be a POST request request.HTTPMethod = @"POST"; // Setting a timeout request.timeoutInterval = 20.0; //...
So far, we defined how easy it is to write a custom element that hides the messy html behind it and gives the user, an easy to write and brief markup. Time to code it! Our custom element, to display the bar below the hero image should Accept a Link to be shared Accept a Link to the Repo to be ...
<link rel="import" href="../bower_components/iron-icon/iron-icon.html"> <link rel="import" href="../bower_components/iron-icons/iron-icons.html"> <link rel="import" href="../bower_components/iron-icons/social-icons.html"&gt...
On whichever page you want to display your product / project portfolio, invoke the custom element like so: <article id="project-neighbourhood"> <div class="row"> <div class="col-12 hero"> <img src="path-to-hero-image...
Dictionaries are great for managing information where multiple entries occur, but you are only concerned with a single value for each set of entries — the first or last value, the mininmum or maximum value, an average, a sum etc. Consider a workbook that holds a log of user activity, with a script ...
;;Recursively print the elements of a list (defun print-list (elements) (cond ((null elements) '()) ;; Base case: There are no elements that have yet to be printed. Don't do anything and return a null list. (t ;; Recursive case ;; Print the next elem...

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