Getting Started

Basics

Query Modifiers

.where() .sort()

Query Predicates

.equals() .notEquals() .exists() .notExists() .startsWith() .endsWith() .contains() .greaterThan() .lessThan() .between() .outside()

Query Executors

.read() .first() .last() .count() .sum() .average() .min() .max() .update() .delete()

Login Methods

.exists() .login() .logout()

Instance Methods

.read() .delete()

Instance Login Methods

.login() .logout() .changePassword()

Misc

Back.then() Back.saved() Back.user() Back.eachProperty() Back.eachDescendant() IFile Property LoginResult

Predicates.between()

Filters the query based on whether the value of the applicable NumberProperty or DateProperty is between the specified value range. This method is the opposite of outside().

Employees
	.where(Employee.salary).between(1000, 1500)
	.read(employees= >
	{
		// employees is an array of Employees objects whose 
		// salaries are between $1000 and $1500.
	});

var lowerBound = new Date();
var upperBound = new Date().setYear(new Date().getYear() - 10);

Companies
	.where(Company.foundingDate).between(lowerBound, upperBound)
	.read(companies =>
	{
		// companies is an array of Company objects 
		// that were founded in the last 10 years.
	});
	

Method signature (TypeScript)

static between(lowerBound: number, upperBound: number);
static between(lowerBound: Date, upperBound: Date);

Details

lowerBound
The number or Date value that the stored value must be greater than in order to match.
lowerBound
The number or Date value that the stored value must be less than in order to match.
returns
An object containing all of the Query Modifiers and Query Executors.

Availability:

This predicate is available when the previous .where() modifier contains a property of one of the following types: