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CSS for grabbing cursors (drag & drop)
I have a JavaScript webapp where the user needs to grab the background to move the whole screen around. So I want the cursor to change when they're hovering over the background. The -moz-grab and -moz-grabbing CSS cursors are ideal for this. Of course, they only work in Firefox... are there ...
Why do all browsers' user agents start with “Mozilla/”?
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Mozilla/5.0 is the general token that says the browser is Mozilla compatible, and is common to almost every browser today.
for more detail click here
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How do I explicitly instantiate a template function?
...mplate ‘int function_name’
a.cpp:1: error: expected `;' before ‘(’ token
a.cpp:3: error: ‘function_name’ is not a template function
which is clearly different from what OP cited.
In this variant the second line is ok (<int> can be omitted here), but the first line is faulty. The...
Accidentally committed .idea directory files into git
...uggestion on how your .gitignore should look like.
– tokenizer_fsj
Jul 20 '18 at 15:14
2
I cant g...
Understanding slice notation
I need a good explanation (references are a plus) on Python's slice notation.
33 Answers
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How to increment a pointer address and pointer's value?
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First, the ++ operator takes precedence over the * operator, and the () operators take precedence over everything else.
Second, the ++number operator is the same as the number++ operator if you're not assigning them to anything. The differ...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
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There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; not...
Trying to embed newline in a variable in bash [duplicate]
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Summary
Inserting \n
p="${var1}\n${var2}"
echo -e "${p}"
Inserting a new line in the source code
p="${var1}
${var2}"
echo "${p}"
Using $'\n' (only bash and zsh)
p="${var1}"$'\n'"${var2}"
echo "${p}"
Details
1. Inserting \n
p="${var1}\n${...
Unicode equivalents for \w and \b in Java regular expressions?
Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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Semicolons superfluous at the end of a line in shell scripts?
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| & ; ( ) < > space tab
control operator
A token that performs a control function. It is one of the following symbols:
|| & && ; ;; ( ) | |& <newline>
So, the ; can be metacharacter or control operator, while the ;; is always a contr...