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Whenever I put .toLowerCase or .toUpperCase it doesn't work for me. It shows me the error constant string expression required. I was wondering if anyone could help me figure out how to fix this. Here's some code to help you out.

I am trying to develop a rock, paper and scissors by Javascript. The program works, however, the output is wrong. For example, if I define the userInput ComputerInput, I want the output is Tie. However, sometimes returns an incorrect answer. May I know why does it occurs? Herewith the code:

I am making a ninja game in which a ninja has to dodge obstacle by jumping(pressing spacebar), but the jump animation is too fast and the ninja is not able to jump beyond the obstacles. I want that it jumps a little slowly so as to make it jump beyond the obstacles, and goes till the 394 y value even if the key is released after pressing and then come down.

Note that I am a beginner.

I am making a game in which a ninja has to dodge obstacles coming in front of him, the obstacles are chosen randomly by the computer using random.randint() in the method choose() in obstacle class. The problem is that the choose() method chooses a random number in every iteration of the main loop. I want that if the x position of the obstacle is 0 then only it should choose another random number.

Remember that I am a beginner

Here is my code:

I have been trying to resolve an issue being thrown at runtime where the recyclerview I am using is null. From most examples of this error message I have seen online it is usually when using a RecyclerView is being used in a fragment. This RecyclerView is just being used in a normal Kotlin Activity.

Error When OrderActivity.kt is opened

It seems to me that this should be an easy thing to do with key but I'm struggling.

I have two XML files with elements with elements within.

They both have a @corresp attribute and a @sameAs attribute, but one of the files has is missing a number of the @sameAs attributes.

I would like to copy over the missing @sameAs attributes from one file to the other with the assumption that the @sameAs value is paired with the @corresp attribute's value (they are English/Spanish translations).

Where a value for @sameAs already exists, I this should not be overwritten.

The @sameAs - @corresp pairs are valid across both m and w.

The input file looks like this:

##importing libraries i defined click here because i have used it globally in later functions

I have a file like the following:

I have hard times to apply a user defined function to a specific column in a python dataframe. The dataframe is as fellow: