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ghasemkiani

@ghasemkiani

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ghasemkiani
@ghasemkiani Apr 3, 2018, 10:17 AM UTC

Merging PDF Files with Java

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…

108 upvotes 155 replies $0.08
ghasemkiani
@ghasemkiani Mar 20, 2018, 4:15 PM UTC

Happy Iranian New Year

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…

60 upvotes 97 replies $0.16
ghasemkiani
@ghasemkiani Mar 14, 2018, 8:12 AM UTC

Stephen Hawking, one of the greatest physicists of our time, dies at 76

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…

57 upvotes 58 replies $0.58
ghasemkiani
@ghasemkiani Feb 26, 2018, 12:38 PM UTC

Using Scoped NPM Packages

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. Specific…

46 upvotes 62 replies $0.13
ghasemkiani
@ghasemkiani Feb 21, 2018, 3:44 PM UTC

Optimistic Typing in Nashorn

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 ha…

37 upvotes 41 replies $0.95
ghasemkiani
@ghasemkiani Feb 16, 2018, 3:08 AM UTC

JavaScript Basics: Reflect.apply

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…

43 upvotes 49 replies $0.10
ghasemkiani
@ghasemkiani Feb 16, 2018, 3:02 AM UTC

JavaScript Basics: Reflect.construct

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,…

30 upvotes 28 replies $0.02
ghasemkiani
@ghasemkiani Feb 14, 2018, 7:40 PM UTC

JavaScript Basics: Reflect

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 fin…

31 upvotes 37 replies $0.04
ghasemkiani
@ghasemkiani Feb 12, 2018, 7:50 AM UTC

New Horizons Broke the Record of the “Pale Blue Dot” Picture

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 ar…

36 upvotes 41 replies $0.05
ghasemkiani
@ghasemkiani Feb 10, 2018, 1:21 PM UTC

JavaScript Basics: Object.freeze and Object.isFrozen

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…

32 upvotes 48 replies $0.04