Tutorial by Examples: n

By default, accessing an individual item in a template dom-repeat loop is by calling {{item}}. Passing in an as= attribute to template will allow you to switch out the default {{item}} syntax for something that is more customized to the module you are working with. In this case, we want to grab the ...

Consider a basic class containing an object with getters and setters in Java: public class CountHolder { private int count = 0; public int getCount() { return count; } public void setCount(int c) { count = c; } } We can't access the count variable because it's private. But we can ac...

For example, with following nmap: nmap <expr> <S-F6> ':%s/' . @/ . '//gc<LEFT><LEFT><LEFT>' select a word with *, type Shift-F6, type in a replacement and hit Enter to rename all occurrences interactively.

interface Mockable { bool DoSomething(); } var mock = new Mock<Mockable>(); mock.Setup(x => x.DoSomething()).Returns(true); var result = mock.Object.DoSomething(); //true

public class BasicJavaBean implements java.io.Serializable{ private int value1; private String value2; private boolean value3; public BasicJavaBean(){} public void setValue1(int value1){ this.value1 = value1; } public int getValue1(){ ...

Click on New Files --> Transformation once a new transformation is open, Click on views tab ,under views create two connections (source ) and (destination). source: table where data is available destination: table where you want to push your data. Once done. on the top bar you have tools -...

Adding a icon to your tray-bar let tray = null; let mainWindow = null; let user = null; app.on('ready', () => { /** * Tray related code. */ const iconName = 'icon.png'; const iconPath = path.join(__dirname, iconName); tray = new Tray(iconPath); tray.setT...

Helper functions are used in conjunction with select to identify variables to return. Unless otherwise noted, these functions expect a string as the first parameter match. Passing a vector or another object will generate an error. library(dplyr) library(nycflights13) starts_with starts_with al...

One needs the predicted probabilities in order to calculate the ROC-AUC (area under the curve) score. The cross_val_predict uses the predict methods of classifiers. In order to be able to get the ROC-AUC score, one can simply subclass the classifier, overriding the predict method, so that it would a...

In Controller: $this->load->model('your_model'); $data['model'] = $this->your_model; In view: $model->your_method;

You must to add to web.xml a configuration tag like this: <context-param> <param-name>facelets.SKIP_COMMENTS</param-name> <param-value>true</param-value> </context-param> Now you can use normal HTML comments tag <!-- and --> <!-- <...

First lets create a vector called Vector1: set.seed(123) Vector1 <- rnorm(20) And add missing data to it: set.seed(123) Vector1[sample(1:length(Vector1), 5)] <- NA Now we can use the is.na function to subset the Vector Vector1 <- Vector1[!is.na(Vector1)] Now the resulting vect...

There might be times where you have a data frame and you want to remove all the rows that might contain an NA value, for that the function complete.cases is the best option. We will use the first 6 rows of the airquality dataset to make an example since it already has NAs x <- head(airquality) ...

the most common use case is to set pointer-events to none to prevent certain shapes or all of your drawing to capture mouse events, and to let the shapes underneath them to receive the events. If you hover over the area where the red circle overlaps the blue circle, the blue circle will still rece...

A constant expression is an expression that yields a primitive type or a String, and whose value can be evaluated at compile time to a literal. The expression must evaluate without throwing an exception, and it must be composed of only the following: Primitive and String literals. Type ca...

ll | grep ^- | awk -F"." '{print $2 "." $3}' | awk -F":" '{print $2}' | awk '{$1=""; print $0}' | cut -c2- | awk -F"." '{print "mkdir ""$1"";mv ""$1"."$2"" ""$1"""}' >...

In Apache Spark while doing shuffle operations like join and cogroup a lot of data gets transferred across network. Now, to control the number of partitions over which shuffle happens can be controlled by configurations given in Spark SQL. That configuration is as follows: spark.sql.shuffle.partiti...

Java expressions are evaluated following the following rules: Operands are evaluated from left to right. The operands of an operator are evaluated before the operator. Operators are evaluated according to operator precedence Argument lists are evaluated from left to right. Simple Example I...

git filter-branch --force --index-filter \ 'git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA' \ --prune-empty --tag-name-filter cat -- --all Add your file with sensitive data to .gitignore to ensure that you don't accidentally commit it again. echo "YOUR-FILE-WITH-SE...

BFG Repo cleaner is an alternative to git filter-branch. It can be used to remove sensitive data or large files that were committed wrongly like binaries compiled from the source. It is written in Scala. Project website: BFG Repo Cleaner Requirements The Java Runtime Environment (Java 7 or above ...