Consider the following example. String str = new String(); str = "Hello"; System.out.println(str); //Prints Hello str = "Help!"; System.out.println(str); //Prints Help! Now, in Java, String objects are immutable. Then...
Closed. This question is opinion-based. It is not currently accepting answers. Closed last month. Locked. This question and its answers are locked because the question is off-topic but has...
I am currently working on React JS and React Native frameworks. On the half way road I came across Immutability or the Immutable-JS library, when I was reading about...
import copy a = "deepak" b = 1, 2, 3, 4 c = [1, 2, 3, 4] d = {1: 10, 2: 20, 3: 30} a1 = copy.copy(a) b1...
I’ve recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables, and I’ve tested to ensure that it cannot...
We all know that String is immutable in Java, but check the following code: String s1 = "Hello World"; String s2 = "Hello World"; String s3 = s1.substring(6); System.out.println(s1);...
This could be the dumbest question ever asked but I think it is quite confusing for a Java newbie. Can somebody clarify what is meant by immutable? Why is...
Following the discussions here on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this question). What’s the actual problem...
In Ruby some methods have a question mark (?) that ask a question like include? that ask if the object in question is included, this then returns a true/false....
I’m trying to remove specific characters from a string using Python. This is the code I’m using right now. Unfortunately it appears to do nothing to the string. for...