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What are the rules for JavaScript's automatic semicolon insertion (ASI)?
(7 answers)
Closed 7 months ago.
If I have the following:
...
let p1 = <p>qwer</p>
let p2 = <p>asdf</p>
...
Should I put semicolons at the end of each of these?
It is not wrong to leave it like that, you can put semicolons if you want, but it is better you be consistent and follow one code style check https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode
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What is the meaning of a dot (.) after an integer in c?
(2 answers)
Closed 2 years ago.
I read a code online and the next line caught my attention since I don't know why does it have a "." after the 0:
variable=0.;
I couldn't find the answer after looking for it. Could you please tell me what is the dot for?
Thanks!!
The dot makes it a double. A clearer way to write it is 0.0.
This question already has answers here:
What is the full "for" loop syntax in C?
(6 answers)
Closed 5 years ago.
My question is simple,thus I will not go in deep
can we use for() loop without condition like this
for(;;space+=1)
{
printf(" ");
break;
}
Of course you can. An empty condition is taken to evaluate to 1.
for (;;){/*ToDo - your code here*/} is idiomatic C.
Yes it is perfectly correct to do so.
But since you have provided a break immediately after printf, it will only execute once. I'm not sure whether this is what you wanted. But if so, then this works fine.
This question already has answers here:
Is there a label/goto in Python?
(22 answers)
Closed 7 years ago.
We can use goto and :label in batch.
Is there anything like it in Python?
No, there is no goto or label or other equivalent in vanilla python.
Your best bet is to stick with regular control flow statements (e.g. if, else if, else, for, while, break, continue, ...) and functions (which add return to the list of control flow statements as well ...)
This question already has answers here:
getting free unit number in fortran
(2 answers)
Closed 7 years ago.
I can write a FORTRAN function to find an available file unit, but I was certain there was already an intrinsic. But if there is, I can't find anything about it. Is there such a thing or am I dreaming?
UPDATE: Apologies for the duplicate. Did a search, but it didn't show up.
I guess, you are looking for newunit (available with F2008, shown at the bottom of that link in the Fortran Wiki).
Ups, has already been answered.
maybe you were thinking of inquire?
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Why are variables "i" and "j" used for counters?
(23 answers)
Closed 10 years ago.
In all the programming languages I have come across there seems to be the best practice to use variable i in for loop iterations. Usually i is followed by l in the nested loop. This seem to apply both for statically compiled and scripting languages.
What is the history of this practice? Does i mark for integer, index, or something else? Why, for example, we don't use x which would be more common, considering math background.
I've got two theories: i can stand for 1) index 2) integer (value of integer type)
It makes most sense that i stands for index because the loop is over each element of an array and each element is indexed.