Tutorial by Examples: f

A for-each loop in Less has the same key components as a for loop except for the following differences: A variable which contains the list of items that has to be iterated over. An extract() function to extract each item in the variable based on the loop's index. A length() function to calculat...

With AspNetCore you can develop the application on any platform including Mac,Linux,Window and Docker. Installation and SetUp Install visual Studio Code from here Add C# extesnion Install dot net core sdk. You can install from here Now you have all the tools available. To develop the applic...

One can initialize a Julia array by hand, using the square-brackets syntax: julia> x = [1, 2, 3] 3-element Array{Int64,1}: 1 2 3 The first line after the command shows the size of the array you created. It also shows the type of its elements and its dimensionality (int this case Int64 ...

The Java SE Development Kit (JDK) 7 Update 10 (or later) or JDK 8 is required to install NetBeans IDE. You can download the latest update of JDK 7 and JDK 8 at http://www.oracle.com/technetwork/java/javase/downloads. The PHP and C/C++ NetBeans bundles only require the Java Runtime Environment (JRE)...

If you have multiple libraries in the same solution, you can add local (project) references between them: { "dependencies": { "NETStandard.Library": "1.6.0", "MyOtherLibrary": { "target": "project" } }...

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The summation 1/1 + 1/2 + 1/3 + 1/4 + ... + 1/n is equal to the nth harmonic number, denoted Hn. The nth harmonic number obeys the inequalities ln (n + 1) ≤ Hn ≤ (ln n) + 1 and therefore Hn = Θ(log n). The harmonic numbers often arise in the analysis of algorithms, with randomized quicks...

The summation 1/1 + 1/4 + 1/9 + 1/16 + ... out to infinity converges to π2 / 6, and therefore any summation of the form 1/1 + 1/4 + 1/9 + 1/16 + ... + 1/n2 is Θ(1).

ABCD1penred5002penblue-503penred04pencilblue175pencilgreen-1.5 To only return "pencil" data: =QUERY("A1:D6","select * where B='pencil' ",1) To only return rows that contain "pen" (all rows): =QUERY("A1:D6","select * where B contains 'pen' ...

You can add hours, minutes, seconds and nanoseconds: LocalTime time = LocalTime.now(); LocalTime addHours = time.plusHours(5); // Add 5 hours LocaLTime addMinutes = time.plusMinutes(15) // Add 15 minutes LocalTime addSeconds = time.plusSeconds(30) // Add 30 seconds LocalTime addNanoseconds = ti...

If two pointers are compared using <, >, <=, or >=, the result is unspecified in the following cases: The pointers point into different arrays. (A non-array object is considered an array of size 1.) int x; int y; const bool b1 = &x < &y; // unspecified int ...

If the underlying type is not explicitly specified for an unscoped enumeration type, it is determined in an implementation-defined manner. enum E { RED, GREEN, BLUE, }; using T = std::underlying_type<E>::type; // implementation-defined However, the standard does require th...

A reference is not an object, and unlike an object, it is not guaranteed to occupy some contiguous bytes of memory. The standard leaves it unspecified whether a reference requires any storage at all. A number of features of the language conspire to make it impossible to portably examine any storage ...

If a function has multiple arguments, it is unspecified what order they are evaluated in. The following code could print x = 1, y = 2 or x = 2, y = 1 but it is unspecified which. int f(int x, int y) { printf("x = %d, y = %d\n", x, y); } int get_val() { static int x = 0; r...

C++11 All standard library containers are left in a valid but unspecified state after being moved from. For example, in the following code, v2 will contain {1, 2, 3, 4} after the move, but v1 is not guaranteed to be empty. int main() { std::vector<int> v1{1, 2, 3, 4}; std::vector&l...

To use additional packages within the Rcpp ecosystem, the correct header file may not be Rcpp.h but Rcpp<PACKAGE>.h (as e.g. for RcppArmadillo). It typically needs to be imported and then the dependency is stated within // [[Rcpp::depends(Rcpp<PACKAGE>)]] Examples: // Use the RcppAr...

This is a basic project that uses FXML, created with NetBeans (New Project -> JavaFX -> JavaFX FXML Application). It contains just three files: Main Application class package org.stackoverflow; import javafx.application.Application; import javafx.fxml.FXMLLoader; import javafx.scene.Par...

post-receive hooks can be used to automatically forward incoming pushes to another repository. $ cat .git/hooks/post-receive #!/bin/bash IFS=' ' while read local_ref local_sha remote_ref remote_sha do echo "$remote_ref" | egrep '^refs\/heads\/[A-Z]+-[0-9]+$' >/dev/null &am...

This code shows a simple example of animation in Unity. For this example, you should have 2 animation clips; Run and Idle. Those animations should be Stand-In-Place motions. Once the animation clips are selected, create an Animator Controller. Add this Controller to the player or game object you w...

KafkaConsumers request messages from a Kafka broker via a call to poll() and their progress is tracked via offsets. Each message within each partition of each topic, has a so-called offset assigned—its logical sequence number within the partition. A KafkaConsumer tracks its current offset for each p...