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Create an index on a huge MySQL production table without table locking
...TER TABLE). You can run multiple commands with pt-online-schema-change by stringing them up and separated by comma.
– Alex Le
Sep 3 '15 at 15:45
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How to replace strings containing slashes with sed?
...one:g
You can use any character as a delimiter that's not part of either string. Or, you could escape it with a backslash:
s/\//foo/
Which would replace / with foo. You'd want to use the escaped backslash in cases where you don't know what characters might occur in the replacement strings (if t...
Pad a number with leading zeros in JavaScript [duplicate]
... or at least not completely; it treats them as if their value is the empty string. Thus you get a copy of the zero character (or whatever "z" is) between each of the array elements; that's why there's a + 1 in there.
Example usage:
pad(10, 4); // 0010
pad(9, 4); // 0009
pad(123, 4); ...
How to split a string into an array of characters in Python?
I've tried to look around the web for answers to splitting a string into an array of characters but I can't seem to find a simple method
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Format file size as MB, GB, etc [duplicate]
I need to display a file size as a string using sensible units.
3 Answers
3
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Difference between == and ===
...ook at example:
class Person : Equatable {
let ssn: Int
let name: String
init(ssn: Int, name: String) {
self.ssn = ssn
self.name = name
}
static func == (lhs: Person, rhs: Person) -> Bool {
return lhs.ssn == rhs.ssn
}
}
P.S.: Since ssn(social s...
Getting binary content in Node.js using request
...l
And then body will be of type Buffer, instead of the default, which is string.
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How to copy Java Collections list
...
Calling
List<String> b = new ArrayList<String>(a);
creates a shallow copy of a within b. All elements will exist within b in the exact same order that they were within a (assuming it had an order).
Similarly, calling
// note:...
Create an instance of a class from a string
...of the class at runtime. Basically I would have the name of the class in a string.
8 Answers
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C++ deprecated conversion from string constant to 'char*'
...ver you have a situation like the following:
char* pointer_to_nonconst = "string literal";
Why? Well, C and C++ differ in the type of the string literal. In C the type is array of char and in C++ it is constant array of char. In any case, you are not allowed to change the characters of the string...