What are the AngularJs Global API?

It is a combination of global JavaScript function which is used to perform tasks like comparing objects, iterating objects and converting data.

There are some common API functions like:

• angular. lowercase: It converts a string to lowercase string.
• angular. uppercase: It converts a string to uppercase string.
• angular. isString: It will return true if the current reference is a string.
• angular. isNumber: It will return true if the current reference is a number.