Perm Gen stands for permanent generation. It is the space on Java Heap that holds meta-data describing user classes (classes that are not part of the Java language). Examples of…
Perm Gen space in Heap – Java
Posted in Education, and WhoCodeFirst
Tag: student
Revealing Module Pattern – Design Pattern
Posted in Education, and WhoCodeFirst
A variation of the module pattern is called the Revealing Module Pattern. The purpose is to maintain encapsulation and reveal certain variables and methods returned in an object literal. The direct implementation looks…
Prototype Design Pattern
Posted in Education, and WhoCodeFirst
The Prototype Pattern creates new objects, but rather than creating non-initialized objects it returns objects that are initialized with values it copied from a prototype – or sample – object. The Prototype pattern…
What is memoization and what’s the use it?
Posted in Education, and WhoCodeFirst
memoization is a process of building a function that is capable of remembering it’s previously computed results or values. The use of making a memoization function is that we avoid the computation of that function…
What will the following code output?
Posted in Education, and WhoCodeFirst
0.1 + 0.2 === 0.3 This will surprisingly output false because of floating point errors in internally representing certain numbers. 0.1 + 0.2 does not nicely come out to 0.3 but instead the result is…