Tutorial by Examples: bool

Boolean attributes are mirrored by Jade, and accept bools, aka true or false. When no value is specified true is assumed. Code: input(type='checkbox', checked) input(type='checkbox', checked=true) input(type='checkbox', checked=false) input(type='checkbox', checked=true.toString()) Result: ...
Any method in Rails model can return boolean value. simple method- ##this method return ActiveRecord::Relation def check_if_user_profile_is_complete User.includes( :profile_pictures,:address,:contact_detail).where("user.id = ?",self) end Again simple method returning bool...
bool is a datatype defined in C99. Boolean values are used in conditionals, such as if or while statements, to conditionally perform logic or repeat execution. When evaluating a conditional statement, the value 0 is considered “false”, while any other value is considered “true”. Because NULL ...
Consider the following ranges A1:A3 and B1:B3 as below =SUMPRODUCT(--(A1:A3="c"),B1:B3) This will first manipulate (A1:A3="c") into the following array A1="c" = FALSE A2="c" = FALSE A3="c" = TRUE Then apply the -- operator which converts...
BOOL Apple's Objective-C frameworks and most Objective-C/Cocoa code uses BOOL. Use BOOL in objective-C, when dealing with any CoreFoundation APIs Boolean Boolean is an old Carbon keyword , defined as an unsigned char
Boolean literals are the simplest of the literals in the Java programming language. The two possible boolean values are represented by the literals true and false. These are case-sensitive. For example: boolean flag = true; // using the 'true' literal flag = false; // using the 'fa...
In the file myConfig.groovy is the following content. message = 'Hello World!' aNumber=42 aBoolean=false aList=["apples", "grapes", "oranges"] Then in your main script you create a ConfigSlurper for your myConfig.groovy file which is really just another groovy sc...
The following statement if (conditionA && conditionB && conditionC) //... is exactly equivalent to bool conditions = conditionA && conditionB && conditionC; if (conditions) // ... in other words, the conditions inside the "if" statement just form an...
SET @searchTerm= 'Database Programming -Java'; SELECT MATCH (Title) AGAINST (@searchTerm IN BOOLEAN MODE) Score, ISBN, Author, Title FROM book WHERE MATCH (Title) AGAINST (@searchTerm IN BOOLEAN MODE) ORDER BY MATCH (Title) AGAINST (@searchTerm IN BOOLEAN MODE) DESC; Giv...
HTML5 defines some HTML attributes as boolean; a boolean can only be true or false. The specification simply states that the presence of a boolean attribute implies that the attribute is set to true. In example using a disabled attribute in the following example disables the button input element: &...
To extend and expand upon the binding experience we have converters to convert one a value of one type into another value of another type. To leverage Converters in a Databinding you first need to create a DataConverter class tht extens either IValueConverter(WPF & UWP) or IMultiVal...
This will be our example data frame: df = pd.DataFrame({"color": ['red', 'blue', 'red', 'blue']}, index=[True, False, True, False]) color True red False blue True red False blue Accessing with .loc df.loc[True] color True red True red ...
This will be our example data frame: color name size 0 red rose big 1 blue violet big 2 red tulip small 3 blue harebell small Using the magic __getitem__ or [] accessor. Giving it a list of True and False of the same length as the dataframe will give you: ...
A clean way to handle booleans is using an inline conditional with the a ? b : c ternary operator, which is part of Swift's Basic Operations. The inline conditional is made up of 3 components: question ? answerIfTrue : answerIfFalse where question is a boolean that is evaluated and answerIfTrue...

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