Hom | Hom - React.JS for Haskell | Functional Programming library
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kandi X-RAY | Hom Summary
Hom - React.JS for Haskell!.
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QUESTION
#include
struct BirdHome{
char area[500];
char heightcm[100];
char feederquantity[10];
char hasNest[5];
};
struct Bird{
char isRinged[5];
char nameSpecies[50];
char birdAgeMonths[500];
struct BirdHome hom;
char gender[6];
};
struct Bird birds;
int main(void){
FILE *oput;
int max=100;
int count = 0;
char filename[100];
printf("file name? : ");
scanf("%s", &filename);
count = load(filename, &birds, max);
if (count == 0)
printf("No structures loaded\n");
else (
printf("Data loaded\n")
);
save(&birds, oput);
return 0;
}
int load(char *filename, struct Bird *birds, int max){
int count = 0;
FILE *fp = fopen(filename, "r");
char line[100 * 4];
if (fp == NULL)
return 1;
while (count < max && fgets(line, sizeof(line), fp) != NULL){
sscanf(line, "%s %s %s %s %s %s %s %s", birds[count].isRinged, birds[count].nameSpecies,
birds[count].birdAgeMonths, birds[count].hom.area,
birds[count].hom.heightcm, birds[count].hom.feederquantity,
birds[count].hom.hasNest,birds[count].gender);
count++;
}
fclose(fp);
return count;
}
int save (struct Bird *birds, FILE *oput){
int i;
oput=fopen("birdssave.txt","w");
for (i=0;i<3;i++){
fprintf(oput,"%s %s %s %s %s %s %s %s\n",birds[i].isRinged, birds[i].nameSpecies,
birds[i].birdAgeMonths, birds[i].hom.area,
birds[i].hom.heightcm, birds[i].hom.feederquantity,
birds[i].hom.hasNest,birds[i].gender);
}
fclose(oput);
}
...ANSWER
Answered 2021-May-30 at 10:50The load function is made unproperly so it doesn't work. The normal functions does a lot more things to do. Here is the text of it with the needed commentaries
QUESTION
I need get number years between today data and data datepicker. My count function does not work. Jquery datepicker
...ANSWER
Answered 2021-May-01 at 13:26QUESTION
I have jquery datepicker and try make select data for count. When click on input I get datepicker calendar and same time alert from input with message 1,aprill,21. If I chose date from datepicker I not get result from my function. If I chose message date I get NaN. So it is mean my datepicker select does not work. How I can fix it. Very tired with this plagin My HTML
...ANSWER
Answered 2021-May-01 at 04:43It's not a problem with the callback or the datepicker. You are using the wrong date format for parsing the date. It should be 'dd/mm/yy' instead of 'yy-m-d'.
The code should look this, (look at the onSelect function):
QUESTION
Hi I have function but she does not work. I use jquery datepicker. I think problem in my datepicker does not work. How I can fix my function for get full year? For me important in function get year.
...ANSWER
Answered 2021-Apr-29 at 14:56Consider the following.
QUESTION
I understand that many of the names in Haskell are inspired by category theory terminology, and I'm trying to understand exactly where the analogy begins and ends.
The CategoryHask
I already know that Hask
is not (necessarily) a category due to some technical details about strictness/laziness and seq
, but let's put that aside for now. For clarity,
- The objects of
Hask
are concrete types, that is, types of kind*
. This includes function types likeInt -> [Char]
, but not anything that requires a type parameter likeMaybe :: * -> *
. However, the concrete typeMaybe Int :: *
belongs toHask
. Type constructors / polymorphic functions are more like natural transformations (or other more general maps fromHask
to itself), rather than morphisms. - The morphisms of
Hask
are Haskell functions. For two concrete typesA
andB
, the hom-setHom(A,B)
is the set of functions with signatureA -> B
. - Function composition is given by
f . g
. If we are worried about strictness, we might redefine composition to be strict or be careful about defining equivalence classes of functions.
Functor
s are Endofunctors in Hask
I don't think the technicalities above have anything to do with my confusion below. I think I understand it means to say that every instance of Functor
is an endofunctor in the category Hask
. Namely, if we have
ANSWER
Answered 2021-Apr-21 at 06:31You're right that Konst m
isn't quite a constant functor from a category-theory standpoint. But it's very closely related to one!
QUESTION
I am using UNIX and Regex to match any word with the same sequence at start and end. Plus, it has to have one specific character (say 'm') followed by any number of characters in between.
For instances:
cahellomca is valid
salommoresa is valid
lonoletterlo not valid
homlastho is valid
Here is what I have been able to do. However, it returns zero for a list with the previous words (it should return 3).
...ANSWER
Answered 2021-Mar-18 at 20:59You can use a single capture group at the start.
Then match the char like m
surrounded by optional chars [a-z]*
and use the backreference at the end of the string.
QUESTION
The KeywordProcessor used to extract keywords from FlashText is returning NaN at the end of the dataframe. The shape of the dataframe is (14.532.885, 6), where just one column (which contain sentences) is used to extract certain keywords.
The keywords extraction is correctly applied until the row 14.452.474. In other words, extraction is not applied to 80.411 final rows from the sentence column.
...ANSWER
Answered 2021-Mar-16 at 22:35A temporary solution is to create another column applying the same function since there are pure NaN values, after this combine both applied columns creating a third and new column and then make a drop to the two previous columns, because they will have NaN values.
QUESTION
I would like to leave empty first four columns, then I want to add filename without extension in the last 4 columns. I have files as file.frq and goes on. Later I will apply this to the 200 files in loop.
input
...ANSWER
Answered 2021-Mar-16 at 13:34Assuming your input is tab-separated like your desired output:
QUESTION
I'm new with rxjs and i can't see how can i do what i need. I need to add a pair active:true recursively.
I have this data structure coming from api as observable:
...ANSWER
Answered 2021-Mar-04 at 11:55The question has nothing to do with rxJs and Observable, it is a problem of transformation of an Array.
I would try something like this
QUESTION
I have de-compiled a Java project using JD-GUI, and was surprised when I saw that all identifiers are using Java reserved keywords such as int do throw extends etc..
Here is a snippet of the project:
...ANSWER
Answered 2021-Feb-24 at 01:00While reserved words may not occur in Java source code, they are permitted in compiled Java code. Some code obfuscation tools can make use of this to make decompiling harder. For instance, ProGuard provides the following option:
-obfuscationdictionary filename
Specifies a text file from which all valid words are used as obfuscated field and method names. By default, short names like 'a', 'b', etc. are used as obfuscated names. With an obfuscation dictionary, you can specify a list of reserved key words, or identifiers with foreign characters, for instance. White space, punctuation characters, duplicate words, and comments after a# sign are ignored. Note that an obfuscation dictionary hardly improves the obfuscation. Decent compilers can automatically replace them, and the effect can fairly simply be undone by obfuscating again with simpler names. The most useful application is specifying strings that are typically already present in class files (such as 'Code'), thus reducing the class file sizes just a little bit more. Only applicable when obfuscating.
So if you feed this a list with Java identifiers (such as this one) you end up with a class file that causes syntax errors if decompiled. Of course, you can simply rename the variables to fix these compilation errors (for instance by using ProGuard yourself before decompiling), so this is only a minor inconvenience.
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