Check Guidelines & Filters To Use In AngularJS

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It has been more than a decade since I am working as a web developer, so please I request you to take everything with a grain of salt. Apart from my personal experience, we have watched a lot of talks and read a lot of articles relevant to Angular performance, and the following post can be literally considered as a short summary of my findings.
Though with the continuous evolution of different tools and techniques, web development could turn out as quite a tedious process especially when done everything barefooted. The moment a developer is looking to start a web development project, one of the major decisions they will be forced to make is choosing the right framework.

Here comes the hero (AngularJS)
Popularly known by many, AngularJs acts as the best platform available when it comes to web developing in terms of the framework. On one hand, you will find a large demand for tools whereas on the other hand there is a large collection of tools available in the market. Now I assume that you are going to make use of the framework in your upcoming project. So make sure to go through the post entirely.

AngularJs definitely has some set of strong points that continue to push people towards making use of the platform. Based on JavaScript, it features an extensive HTML5 support. Apart from this, in case if you are looking for a perfect looking framework to help you come up with a dynamic range of views, then AngularJs being a healthy mix of performance and user readability can be considered as a top solution.

Guidelines and Filters to take into account
While working with Angular JS, one often requires certain guidelines and filters which greatly simplify the entire development process and add responsive to the interface. However, most of them could be founded with a quick search, but we would like to recommend a few based on our experience as AngularJS developers.

Email address validation
validateEmail: function (email) {
var rx = /^+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
return rx.test(email);
}
To verify the email address we prefer using a simple regular expression. Always remember that this code is used to verify that a user has not entered obvious nonsense. In case, if you are following the RFC standard, it is possible to encounter some difficulties. Numerous factors like constant updating of the of the domain zones list, use of Internationalized Domains (IDN), use of sensitive addresses and many others play a major role here. So validation checks will only affect the general structure of the addresses or else it relies on the adequacy of a user. If you really want to validate email addresses, it is better to use a confirmation by e-mail than to come up with bulky regular expressions.

Finding an element in the array by value
getByProperty: function (array, val, type) {
var length = array.length;
for (var i = 0; i < length; i++) {
if (array[i][type] === val) {
return a[i];
}
}
return null;
}
In the development procedure, the task of searching in an array by a value-specified field occurs quite often. For instance, it can be used to find an element with a certain ID. The simplest function getByProperty eliminates the frequent use of cycles in a code.
user = getByProperty(usersArray, 1, ‘id’);

Generating a unique identifier
Creating unique identifiers directly on the client side (front-end) is mandatory especially while developing single-page applications (SPA, single page applications) In order to make these identifiers work properly with a server (back-end), you should create them in the usual UUID format.

Processing pressing Enter at input
Everyone aims to improve the user experience of their product and I must say it’s worth thinking about each and every minor detail. For instance, you must allow a user to still operate with his usual hotkeys. After filling some data in the text field, you may wish to confirm the action by pressing Enter, instead of taking your hands off the keyboard and drag the cursor to the button.
app.directive(‘ngEnter’, [function () {
return function (scope, element, attrs) {
element.bind(‘keydown keypress’, function (event) {
if (event.which === 13) {
scope.$apply(function (){
scope.$eval(attrs.ngEnter);
});
event.preventDefault();
}
});
};
}]);

Represent bytes in a human-friendly format
Since BitCalm commonly uses file sizes measurement, we needed a tool to convert units in a convenient format on the fly.

Determining the tab browser activity
There are times for you to perform some action when the user switched from the tab with your application. For examples, switching on audio alerts, enable browser-based notifications and so more.
Hope you find the post helpful and give your valuable response.!

Rakesh Patel is Marketing Manager at eTatvaSoft – web, ecommerce & mobile app development company in India. He writes about Technology Trends, Leadership and many more things about IT services and enabled people to learn about new technologies through his online contribution.

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