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How do I use CMake?
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32
CMake takes a CMakeList file, and outputs it to a platform-specific build format, e.g. a Makefi...
What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
...s yet but one of the early steps from this tutorial is linking the SQLite3 framework. The tutorial calls for libsqlite3.0.dylib but I noticed another one libsqlite3.dylib. Is the latter just a symlink to the latest v3 library like the convention for package managers on UNIX or is there a differe...
What's the best way to break from nested loops in JavaScript?
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loop1:
for (var i in set1) {
loop2:
for (var j in set2) {
loop3:
for (var k in set3) {
break loop2; // breaks out of loop3 and loop2
}
}
}
as defined in EMCA-262 section 12.12. [MDN Docs]
Unlike C, these labels can only be used for...
Which mime type should I use for mp3
I'm trying to decide which mime type to choose for returning mp3 data (served up by php)
5 Answers
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How do I remove all HTML tags from a string without knowing which tags are in it?
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3 Answers
3
Active
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Find an item in List by LINQ?
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IEnumerable<string> results = myList.Where(s => s == search);
3) First will return the first item which matches your criteria:
string result = myList.First(s => s == search);
Note FirstOrDefault() will behave the same, except it will return null for reference types, or the default...
Max or Default?
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BartoszKP
30.8k1212 gold badges8686 silver badges121121 bronze badges
answered Dec 4 '08 at 21:58
Jacob Proffit...
Markdown to create pages and table of contents?
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35 Answers
35
Active
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Update MongoDB field using value of another field
..."name": { "$concat": ["$firstName", " ", "$lastName"]}}}
]
)
MongoDB 3.4+
In 3.4+ you can use $addFields and the $out aggregation pipeline operators.
db.collection.aggregate(
[
{ "$addFields": {
"name": { "$concat": [ "$firstName", " ", "$lastName" ] }
}},
...