Functions

Question 1

angular.lowercase

Answer 1

Converts the specified string to lowercase.

Question 2

angular.uppercase

Answer 2

Converts the specified string to uppercase.

Question 3

angular.forEach

Answer 3

Invokes the iterator function once for each item in obj collection, which can be either an object or an array. The iterator function is invoked with iterator(value, key, obj), where value is the value of an object property or an array element, key is the object property key or array element index and obj is theobj itself. Specifying a context for the function is optional.

Question 4

angular.extend

Answer 4

Extends the destination object dst by copying own enumerable properties from the src object(s) to dst. You can specify multiple src objects. If you want to preserve original objects, you can do so by passing an empty object as the target: var object = angular.extend({}, object1, object2).

Question 5

angular.merge

Answer 5

Deeply extends the destination object dst by copying own enumerable properties from the src object(s) to dst. You can specify multiple src objects. If you want to preserve original objects, you can do so by passing an empty object as the target: var object = angular.merge({}, object1, object2).

Question 6

angular.noop

Answer 6

A function that performs no operations. This function can be useful when writing code in the functional style.
function foo(callback) {
  var result = calculateResult();
  (callback || angular.noop)(result);
}

Question 7

angular.identity

Answer 7

A function that returns its first argument. This function is useful when writing code in the functional style.

Question 8

angular.isUndefined

Answer 8

Determines if a reference is undefined.

Question 9

angular.isDefined

Answer 9

Determines if a reference is defined.

Question 10

angular.isObject

Answer 10

Determines if a reference is an Object. Unlike typeof in JavaScript, nulls are not considered to be objects. Note that JavaScript arrays are objects.

Question 11

angular.isString

Answer 11

Determines if a reference is a String.

Question 12

angular.isNumber

Answer 12

Determines if a reference is a Number.

Question 13

angular.isDate

Answer 13

Determines if a value is a date.

Question 14

angular.isArray

Answer 14

Determines if a reference is an Array.

Question 15

angular.isFunction

Answer 15

Determines if a reference is a Function.

Question 16

angular.isElement

Answer 16

Determines if a reference is a DOM element (or wrapped jQuery element).

Question 17

angular.copy

Answer 17

Creates a deep copy of source, which should be an object or an array.

Question 18

angular.equals

Answer 18

Determines if two objects or two values are equivalent. Supports value types, regular expressions, arrays and objects.

Question 19

angular.bind

Answer 19

Returns a function which calls function fn bound to self (self becomes the this for fn). You can supply optional args that are prebound to the function. This feature is also known as partial application, as distinguished from function currying.

Question 20

angular.toJson

Answer 20

Serializes input into a JSON-formatted string. Properties with leading $$ characters will be stripped since angular uses this notation internally.

Question 21

angular.fromJson

Answer 21

Deserializes a JSON string.

Question 22

angular.bootstrap

Answer 22

Use this function to manually start up angular application.

Question 23

angular.reloadWithDebugInfo

Answer 23

Use this function to reload the current application with debug information turned on. This takes precedence over a call to $compileProvider.debugInfoEnabled(false).

Question 24

angular.injector

Answer 24

Creates an injector object that can be used for retrieving services as well as for dependency injection (seedependency injection).

Question 25

angular.element

Answer 25

Wraps a raw DOM element or HTML string as a jQuery element.

Question 26

angular.module

Answer 26

The angular.module is a global place for creating, registering and retrieving Angular modules. All modules (angular core or 3rd party) that should be available to an application must be registered using this mechanism.