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Array.push() if does not exist?
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114
You could extend the Array prototype with a custom method:
// check if an element exists in a...
Convert a String In C++ To Upper Case
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edited Jul 31 at 6:54
ana
3766 bronze badges
answered Apr 9 '09 at 17:47
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Turn Pandas Multi-Index into column
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197
The reset_index() is a pandas DataFrame method that will transfer index values into the DataFr...
Using group by on multiple columns
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2113
Group By X means put all those with the same value for X in the one group.
Group By X, Y means...
How to use java.String.format in Scala?
I am trying to use a .format method of a string. But if I place %1, %2, etc. in the string, java.util.UnknownFormatConversionException is thrown pointing to a confusing Java source code piece:
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How would you implement an LRU cache in Java?
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21 Answers
21
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Check if two linked lists merge. If so, where?
...anged list (i.e. the former beginning of the other list), he will make a+b+1 iterations total. Let's call it z+1.
The pointer that reached the merge-point first, will keep iterating, until reaches the end of the list. The number of iterations it made should be calculated and is equal to x.
Then,...
Auto-center map with multiple markers in Google Maps API v3
...new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map
});
//extend the bounds to include each marker's position
bounds.extend(marker.position);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function(...
JSON.stringify output to div in pretty print way
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12 Answers
12
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MySQL with Node.js
...) {
// connected! (unless `err` is set)
});
Queries:
var post = {id: 1, title: 'Hello MySQL'};
var query = connection.query('INSERT INTO posts SET ?', post, function(err, result) {
// Neat!
});
console.log(query.sql); // INSERT INTO posts SET `id` = 1, `title` = 'Hello MySQL'
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