Among the many JavaScript libraries for writing interactive single-page applications is often used angularJS. It’s easy to explain in simple words what it is, if you know the concept of a library in programming. If you’re not, then first let’s find out what libraries are and why they are needed.<\/p>\n\n\n\n
A bit of analogy. Library is a collection of books, magazines, dictionaries and other kinds of literature. In programming, the word means something else. Imagine that you are faced with a lot of information, which seems to be written in your own language, but you still can’t understand it because of the large amount of specific industry terms. What do you need first of all to understand the information you read?
Correct – a dictionary of unfamiliar terms.
There are also analogues of such dictionaries in programming. In them, for a particular programming language, a set of functions, operators, procedures, methods and events is written to solve a particular range of problems, in other words, the instructions that the machine must perform and the user’s actions to which it should respond.
So there are libraries designed to work with graphics, to work with sound, video, the file system and so on. Each of them helps to solve certain problems.<\/p>\n\n\n\n
So why not include all of these tools right away into the language? AngularJS what it is in simple words Among the many JavaScript libraries for writing interactive single-page applications is often used angularJS. It’s easy to explain in simple words what it is, if you know the concept {…}<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[80],"tags":[],"yoast_head":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n\t\n\t\n
The point is that firstly, programming languages are constantly expanding to include more and more new tools. It’s easier to expand a language by including new “vocabularies” – libraries instead of rewriting it all over again.
Secondly, a language containing a huge number of functions will be too heavy, and the code written in it will be hard to execute, that is will demand and consume too many system resources. This is especially true for scripting languages such as JavaScript, the library of which is angularJS.
With the help of angularJS library the interaction between the user and the graphical interface of a single-page site<\/a> is realized. The functions of this library can create, modify elements of the page of the site, reacting to the actions of the user. That provides the necessary interactivity.<\/p>\n","protected":false},"excerpt":{"rendered":"