What is difference between double quotes and single quote?

Answer 1

In python, there is no set difference, and its just a matter of convenience at the developer's end that he/she chooses double or single quotes. One may use double quotes when the strings include apostrophes.

Eg :

print("You can't use single quotes in between single quotes without escaping...");

Now, if you used single quotes, you would need to escape the quote in between, with a single backslash character.

Eg :

print('You can\'t use single quotes in between single quotes without escaping...');

For more information, read here :
https://stackoverflow.com/questions/56011/single-quotes-vs-double-quotes-in-python

Answer 2

In C++, single quotes are used for a single character while double quotes is used for a string. Example:

char c = 't' //It's a single character

string s = "Hello" //It's a word

Answer 3

This is heavily dependent on the language as some just consider all strings to be strings, others consider double quotes a string and single quotes characters, and others will not interpret expressions in single quotes but will do so for double quotes.

Answer 4

In which language?

Answer 5

Python

Answer 6

usually single quotes are used for one character. Double quotes are used for strings of characters.

Answer 7

variables dont work inside single quotes in php