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Merging PDF files is a common task that we usually need to do in our daily activities. Of course, it is possible and fairly easy to merge PDF files in various applications, including Adobe Acrobat or other

Today 2018-03-20, at exactly 16:15:28 GMT (19:45:28 IRST), the Earth passes the point in its orbit where the ecliptic longitude of the Sun is 0°. It is the so-called vernal equinox, or the beginning of

Stephen Hawking’s family released a statement today, confirming his death at his home in England. Source: Wikimedia, originally from NASA. Public domain. This is a tragic event, since he was a great scientist

NPM is the most widely used package manager for NodeJS. It has more than 600,000 packages with hundreds of millions of downloads per day. NodeJS uses directory hierarchy for finding modules. Specifically,

I have a bunch of programs written in JavaScript for Nashorn, the fast JavaScript engine shipped with JDK 8 and later. Since I had been working on a NodeJS project for the last couple of months, I hadn't

Title: They need water, food, home! In this world, the rich will become richer every day, and the poor become poorer... Look carefully at the two pictures below source Image Source Image They work around

The method Reflect.apply is just a better and more meaningful way to do Function.prototype.apply. In other words, it allows you to call the given function using a specified context (this argument) on an

The method Reflect.construct helps construct a new instance from a constructor function given an array of arguments. It has a functionality similar to the new operator: function Employee (firstname, lastname)

Reflect is a global object in ES6 and later that provides the reflection API for JavaScript. Most strongly typed languages, such as Java, provide a reflection API which you can use to inspect and fine-tune

The New Horizons probe was launched in 2006 in a mission to explore Pluto. First, it had a flyby of Jupiter and used this massive planet’s gravitational force to boost its speed. Then, in 2015, it arrived

Taj Mahal is considered as an epitome of Love. The white marble building is a masterpiece crafted by many Craft men who built it in 20 years. It was build by ShahJahan in the memory of his late beloved

In the previous posts, I discussed about two levels of object protection: Object.preventExtensions and Object.seal. The last level of protection is Object.freeze, which also makes all the properties

In the previous post, I wrote about Object.preventExtensions. That functions prevents the addition of new properties to an object. However, it does not prevent you from configuring, mutating, or even deleting

In JavaScript, an object is extensible by default. This means that new properties can be added to the object. In some circumstances, you my want to prevent extensions to the object. To this end, you can

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Objects in JavaScript have not only their own properties, but also the properties that are on the objects in their prototype chain. Object.keys gives a collection of the object's own properties, but the

I am trying to make a game in ethereum. I have been working hard to make it as good as possible. I have completed level 4 so far. Hope i will be able to finish it very soon. I need your support. So stay

سلام دوستان عزیز امیدوارم که احوالتون خوب باشه من از وقتی که با این محیط اجتماعی آشنا شدم درس های زیادی رو یاد گرفتم بزرگترینش این بود که ما عده ی محدودی ایرانی در این محیط هستیم و به جای اینکه همدیگر

You may have heard of the book JavaScript: The Good Parts (Yahoo Press, December 2008) by Douglas Crockford. The name, obviously, implies that JavaScript has bad parts, too. The equality operator == is

I'm still here! :-) UA-Python is coming! Hi y'all! I've been a little too quiet lately, there weren't any new "The Scipio Files" publications, nor code contributions, tutorials.... Sorry about