What are the AngularJs Global API ?

Global API in AngularJS: API stands for Application Programming Interface. It is a set of protocols, routines, and tools for building software applications that allow the user to interact with the application and perform several tasks. In AngularJS Global API is a set of global Javascript functions used for performing tasks like comparing objects, iterating objects, and converting data. 

👁 Image

Some API functions in AngularJS are shown below:

angular.lowercase: This is a built-in filter that is used to transform any string into lowercase. 

Syntax:

angular.lowercase(string);

Example 1: This example describes the basic usage of the Global API that is utilized to convert the string to lowercase.

Output:

Before Conversion: GeeksforGeeks 
After Conversion: geeksforgeeks

angular.uppercase: This is a built-in filter that is used to transform any string into uppercase. 

Syntax:

angular.uppercase(string);

Example 2: This example describes the basic usage of the Global API that is utilized to convert the string to uppercase.

Output:

Before Conversion: geeksforgeeks
After Conversion: GEEKSFORGEEKS

angular.isString: This is a built-in filter that is used to check whether the given value is a string or not, if the value is a string then it returns true else it returns false. 

Syntax:

angular.isString(value);

Example 3: This example describes the use of the Global API that is utilized to check whether the entered value is a string or not.

Output:

Value is: 15
Value is String: false

angular.isNumber: This is a built-in filter that is used to check whether the given value is a number or not, if it is a number then it returns true else it returns false. 

Syntax:

angular.isNumber(value);

Example 4: This example describes the use of the Global API that is utilized to check whether the given value is a number or not.

Output:

Value is: 15
Value is Number: true

There are several other Global APIs, which are described below:

• angular.isDate: This checks whether the given value is a date or not
• angular.isArray: This checks whether the given reference is an array or not
• angular.isFunction: This checks whether the given reference is a function or not
• angular.isObject: This checks whether the given reference is an object or not