In the nodejs file system module there is a method for creating symbolic links to files and folders. A symbolic link is just simply a reference to a folder or file rather than a folder of file itself. This method is the fs symlink method and in some cases it can be used without issue, however there are some things to be aware of when it comes to permissions when using it.
The nodejs read file file system method is a method in node build in file system module. This method might work just fine when I just want to read a file in full, and not do anything fancy with streaming or reading by way of a buffer. In most cases this method will work fine if I just simple want to read a small file, however it is not a golden hammer for all situations in which I need to read data from the local file system. Never the less it would seem that I never got around to writing a post on this method, so lets get this one out of the way.
In the Core javaScript Object there is the object freeze static method that can be used to freeze an object. Once an object is frozen none of the properties of the object can be changed. In addition to the Object freeze method there is also the seal static method that is also of interest that is a little different from object freeze. The seal method does not freeze an object, however it does make it so no additional properties can be added to the object once it is sealed.
There is set another static method that is relevant to this topic and that is the define property static method of the the main javaScript Object. These three static methods allow for the creation of objects that have a strict set of conditions regarding the properties of an object when it comes to what can be added, changed, or show up in loops. So lets look at some examples mainly of the Object freeze method, but also some additional topics that might be related to this sort of thing.
I have made a basic clock canvas example before however maybe now it is time for another canvas example of a clock this time maybe I can make it into something a little more interesting. There are many things that come to mind when it comes to ideas for canvas clock projects, but for now I think that it might be best to start out with something only slightly more advanced from my basic canvas clock example.
This will be a clock that involves a pool of display objects or particles as they are some times called that move around the canvas. As the day progresses the count of particle objects that are active will increase to to a certain point at which it will come back down again.
This is just one silly little idea that came to mind when it comes to be thing about making some additional canvas examples that are just basic clock like projects. Making clocks is a nice diversion from other canvas projects such as games that can become very complicated and time consuming endeavorers. My experience with making clocks thus far however has been a more rewarding, and therapeutic experience thus far. Just like with games there is a lot of room for originally and creativity, so lets take a look at this slightly more advanced canvas clock with particle objects.
So you have a collection in javaScript, and by collection I mean an array or an object in general that is a collection of key value pairs. With that said the situation is that you want to invoke a method in the collections prototype, or any method in general, for all elements in this collection. Well in lodash there is the invokeMap method that can be used to invoke a method at a certain path, for all elements in a collection. When I say path I mean a string representation of nested property names for an object in a collection, a standard that is used with methods like the lodash get method, and the lodash set method that might be worth looking into when it comes to the basics of paths in lodash.
However in modern javaScript there are also plenty of tools to grab at to begin with that a javaScript developer should be aware of that can also be used for this kind of task. So lets take an look at some code examples of calling a method for all elements in a collection by using lodash, and also just plain javaScript on its own.