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Ant task to run an Ant target only if a file exists?
...
123
This might make a little more sense from a coding perspective (available with ant-contrib: htt...
Find MongoDB records where array field is not empty
...d only happen if pictures is a sub-doc, not an array. e.g. pictures: {'2': 123}
– JohnnyHK
Aug 24 '15 at 19:46
5
...
jQuery deferreds and promises - .then() vs .done()
...tion (x) { // Suppose promise returns "abc"
console.log(x);
return 123;
}).then(function (x){
console.log(x);
}).then(function (x){
console.log(x)
})
The following results will get logged:
abc
123
undefined
While
promise.done(function (x) { // Suppose promise returns "abc"
...
How to find memory leak in a C++ code/project?
...r at all, it won't cause memory leak, is it right?
– 123iamking
May 16 '16 at 12:01
...
How to wait in a batch script? [duplicate]
...orry about unexpected early returns (say, there's no default route and the 123.45.67.89 is instantly known to be unreachable.)
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Convert string to a variable name
...reg mentioned, assign to assign the variables.
original_string <- c("x=123", "y=456")
pairs <- strsplit(original_string, "=")
lapply(pairs, function(x) assign(x[1], as.numeric(x[2]), envir = globalenv()))
ls()
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
...cked__)) my_struct {
char c;
int i;
};
struct my_struct a = {'a', 123};
struct my_struct *b = &a;
int c = a.i;
int d = b->i;
int *e __attribute__((aligned(1))) = &a.i;
int *f = &a.i;
Here, the type of a is a packed struct (as defined above). Similarly, b is a pointer to a p...
How do you check in python whether a string contains only numbers?
...
Use str.isdigit:
>>> "12345".isdigit()
True
>>> "12345a".isdigit()
False
>>>
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...
Sort Dictionary by keys
...as worked for me:
let dicNumArray = ["q":[1,2,3,4,5],"a":[2,3,4,5,5],"s":[123,123,132,43,4],"t":[00,88,66,542,321]]
let sortedDic = dicNumArray.sorted { (aDic, bDic) -> Bool in
return aDic.key < bDic.key
}
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