Java script
JavaScript is a client-side programming
language which helps web programmer to create web
applications and make dynamic and interactive web
pages by implementing custom client-side scripts
Why JavaScript is the best
first language to learn
Really, the whole idea of one language being “better” than another is a bit erroneous. There’s certainly preferences — but those are subjective, and often just matters of preferred syntax. And there’s also best-case languages, in other words, languages that are best suited to the job/project you’re on— but that wasn’t the question
Motivation for Java Script
All languages do the same thing. They translate human intentions into
machine instructions. And that is the important thing. It
doesn’t matter which language you learn first, what matters is that you
learned a language. You learned how to talk to a machine, how to get
on its level and think like it thinks
History
JavaScript was invented in 1995 by Brendan Eich, who worked at Netscape
at the time. This was during the time that Netscape enjoyed being the world’s most
popular Web Browser (imagine that). Also at this time was a company quickly
picking up A LOT of steam and looking more and more like a monopoly on tech
each day
Frequently asking Questions
There's
a moment in every job interview when the tables turn. A moment, usually toward
the end, when all of a sudden the interviewer becomes the interviewee.
While you may have stayed up
late the night before rehearsing your answers to those tricky - but always
asked - questions: 'What's your
biggest weakness?', why are you right for the role?' and'where do
you see yourself in five years time?'. Responding in the right way is
essential if you want to be seriously considered for the job. Yet when the
tables turn - which they will - and you respond with a 'Um, yeah, um,
so, do you like working here?', then you may have just thrown the
interview away.
But what are these right
questions we speak of? Great question! And you're in luck, because we've got
the answers. Below are the smartest questions to ask in a job interview.
·
WHAT
DO YOU EXPECT FROM THIS ROLE IN THE NEXT THREE MONTHS, SIX MONTHS AND YEAR?
Questions
like this show you as someone who is thinking about what the job will actually
entail - someone ready to take on key tasks and responsibilities and also help
the company move forward. As for the interviewer's answer, well this gives you
the opportunity to assess what will be required of you and if that is something
you're comfortable with.
·
WHY
ARE YOU RECRUITING FOR THIS ROLE?
If you're feeling bold, you can also ask why the last person
left the company to give you an insight into possible career progression.
·
IS
THERE ANY REASON WHY YOU DON'T FEEL I WOULD BE RIGHT FOR THIS ROLE?
To you, this question may seem like handing in the towel but
to an employer, it will show you wish to constantly improve. It's also a great
way of getting instant feedback on how the interviewer feels about your
suitability.
·
HOW ARE
YOU DIFFERENT FROM YOUR CLOSEST COMPETITOR AS AN EMPLOYER?
This type
of question puts the interviewer on the spot, giving them the opportunity
to sing their company’s praises. You can tell a lot about the company by how
enthusiastic the interviewer is when listing the key differences and better
features they have to offer. This will prove valuable when deciding on whether
the role is right for you.
Fields and methods in Java
Classes and
objects in Java introduces the fundamentals of Java classes and objects,
including how to declare classes, describe attributes via fields, describe
behaviors via methods, initialize objects via constructors, and instantiate
objects from classes
Java
Script Data Type
Data Type is used to
categorized data into various categories: because machine can not differentiate
data like 5, 78.90, x, "Hello", *, % etc. All these data are not
same.
JavaScript variables can hold many data types: numbers, strings, objects and more:
var length = 16; // Number
var lastName = "Johnson"; // String
var x = {firstName:"John", lastName:"Doe"}; // Object
When adding a number and a string, JavaScript will treat the number as a string.
Example
var x = 16 + "car";
x=16car
JavaScript variables can hold many data types: numbers, strings, objects and more:
var length = 16; // Number
var lastName = "Johnson"; // String
var x = {firstName:"John", lastName:"Doe"}; // Object
When adding a number and a string, JavaScript will treat the number as a string.
Example
var x = 16 + "car";
x=16car
New Tools and
Updates
dhtmlxGantt 6.1
dhtmlxGantt is a JavaScript
Gantt chart library that
allows creating online project management applications based on Gantt charts.
Recently, developers have released dhtmlxGantt version 6.1 that includes some
curious innovations.
The new version of dhtmlxGantt allows adding
an overlay that can be used to embed any custom content in the
top layer over the Gantt chart application
dhtmlxRichText 1.1
dhtmlxRichText is a fully customizable JavaScript rich text editor with support for HTML, Markdown and plain text as input
and output formats. Starting with version 1.1 developers can get access
to the API of this JavaScript rich text editor that allows
working with the text directly. A new block quote control allows to easily turn ordinary text into
quotations.
arkit
arkit is
a tool that visualizes JavaScript, TypeScript, and Flow codebases as meaningful
and committable architecture diagrams. This tool identifies, connects, and
groups configured architectural components. With its help, you can visualize
all components or some segments of the architecture
GBoards
he backend part of the app was made with Node.js. The
component follows the principles of Material Design, so it’ll fit well to your
modern web app.
12 basic concepts that are critical to understanding by
any JavaScript developer.
1.
Value vs.
Reference Variable Assignment
2.
Closures
3.
Destructuring
4.
Spread Syntax
5.
Rest Syntax
6.
Array Methods
7.
Generators
8.
Identity Operator (===) vs.
Equality Operator (==)
9.
Object Comparison
10.
Callback Functions
11.
Promises
12.
Async Await
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