Tutorial by Examples: el

The CSS/JQuery extractor enables extracting values from a server response by using a CSS/JQuery selector syntax, which might have otherwise been difficult to write using Regular Expression. As a post-processor, this element should be executed to extract the requested nodes, text or attribute values...

JSON is a commonly used data format that is used in web based applications. The JMeter JSON Extractor provides a way to use JSON Path expressions for extracting values from JSON-based responses in JMeter. This post processor must be placed as a child of the HTTP Sampler or for any other sampler that...

When you manually write your performance scripts, you need to deal with correlation yourself. But there is another option to create your scripts - automation scripts recording. On the one hand, the manual approach helps your write structured scripts and you can add all the required extractors at the...

First, let's create a template to be rendered! p Hello World, #{name}! Save this in a file ending with the .pug extension (you can call it anything you like, but we will use view.pug in the following code to compile it). All that's left to do, now, is compile that template! Create a JS script f...

//check if there is actually a file being uploaded if (FileUpload1.HasFile) { //load the uploaded file into the memorystream using (MemoryStream stream = new MemoryStream(FileUpload1.FileBytes)) using (ExcelPackage excelPackage = new ExcelPackage(stream)) { //loop all ...

public static DataTable ExcelPackageToDataTable(ExcelPackage excelPackage) { DataTable dt = new DataTable(); ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets[1]; //check if the worksheet is completely empty if (worksheet.Dimension == null) { return dt;...

This consumer is a low-level tool which allows you to consume messages from specific partitions, offsets and replicas. Useful parameters: parition: the specific partition to consume from (default to all) offset: the beginning offset. Use -2 to consume messages from the beginning, -1 to consume ...

A very common use-case in web applications is performing multiple asynchronous (eg. HTTP) requests and gathering their results as they arrive or all of them at once (eg. in Angular2 with the HTTP service). 1. Gathering async responses one by one as they arrive This is typically done with mergeMap(...

Make a simple Hello World Example using your django. let's make sure that you have django installed on your PC first. open a terminal and type: python -c "import django" -->if no error comes that means django is already installed. Now lets create a project in django. For that write ...

In our AppServiceProvider.php public function boot() { HasMany::macro('toHasOne', function() { return new HasOne( $this->query, $this->parent, $this->foreignKey, $this->localKey ); }); } Suppose we have shop modal and ...

In kafka, each consumer from the same consumer group gets assigned one or more partitions. Note that it is not possible for two consumers to consume from the same partition. The number of flink consumers depends on the flink parallelism (defaults to 1). There are three possible cases: kafka pa...

The most obvious method, if you just want to reset your set/multiset to an empty one, is to use clear: std::set<int> sut; sut.insert(10); sut.insert(15); sut.insert(22); sut.insert(3); sut.clear(); //size of sut is 0 Then the erase method can be used.  It offers some poss...

const Schema = mongoose.Schema; const ObjectId = Schema.Types.ObjectId; const Article = new Schema({ title: { type: String, unique: true, required: [true, 'Article must have title'] }, author: { type: ObjectId, ref: 'User' } }); module.exports = mongoose....

Button API provides an easy way to assign common keyboard shortcuts to buttons without the need to access accelerators' list assigned to Scene or explicitly listening to the key events. Namely, two convenience methods are provided: setDefaultButton and setCancelButton: Setting setDefaultButton ...

If you have the following data file cat data.csv 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 maybe you need to read the fourth column of the third line, this would be "24" awk 'NR==3 ...

This example assumes two servers: dbserver (where our database lives) appclient (where our applications live) FWIW, both servers are SELinux enforcing. First, log on to dbserver Create a temporary directory for creating the certificates. mkdir /root/certs/mysql/ && cd /root/cer...

You can use function help() or ? to access documentations and search for help in R. For even more general searches, you can use help.search() or ??. #For help on the help function of R help() #For help on the paste function help(paste) #OR help("paste") #OR ?paste #OR ...

Once your Kubernetes cluster is running and kubectl is configured you could run your first application with a few steps. This can be done using the imperative commands which doesn't need configuration files. In order to run an application you need to provide a deployment name (bootcamp), the contai...

It is possible to customize the JIRA version, the port or the context path. atlas-run-standalone --product jira --version 6.0 --http-port 1337 --context-path issues The JIRA 6 instance is available under http://localhost:1337/issues There are more parameters that can be set for running atlas-ru...

By convention elementFormDefault is always set to qualified, but lets look at what it actually does. First with elementFormDefault set to qualified. <?xml version="1.0" encoding="utf-8" ?> <!--Created with Liquid Studio 2017 (https://www.liquid-technologies.com)--&g...