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How to iterate over a JavaScript object?
...erty(key)) keys.push(key);
}
Then you can iterate on your properties by index: yourobject[keys[i]] :
for (let i=300; i < keys.length && i < 600; i++) {
console.log(keys[i], yourobject[keys[i]]);
}
shar...
Possible to perform cross-database queries with PostgreSQL?
...base. While this seems like unneeded duplication of data, it might help if indexes are required.
This can be done with simple on insert triggers which in turn call dblink to update another copy. There are also full-blown replication options (like Slony) but that's off-topic.
...
How to customize the background color of a UITableViewCell?
...w:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath { ... }
When this delegate method is called the color of the cell is controlled via the cell rather than the table view, as when you use:
- (UITableViewCell *) tableView: (UITableView *) ...
How does one parse XML files? [closed]
...you are after one specific element, you can access child elements with the indexer: xmlDoc["Root"], and these can be chained: xmlDoc["Root"]["Folder"]["Item"] to dig down the hierarchy (although it's sensible to validate that these elements actually exist)
– Jason Williams
...
Retrieve a single file from a repository
...diate/2009/02/27/get-a-file-from-a-specific-revision.html
git show HEAD~4:index.html > local_file
where 4 means four revision from now and ~ is a tilde as mentioned in the comment.
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imp...
How can I sort a dictionary by key?
...ms()
[(1, 89), (2, 3), (3, 0), (4, 5)]
The SortedDict type also supports indexed location lookups and deletion which isn't possible with the built-in dict type.
>>> s.iloc[-1]
4
>>> del s.iloc[2]
>>> s.keys()
SortedSet([1, 2, 4])
...
CSS3 Rotate Animation
...ght:114px;
top:400px;
margin:0 auto;
margin-left:-195px;
z-index:0;
-webkit-transition-duration: 0.8s;
-moz-transition-duration: 0.8s;
-o-transition-duration: 0.8s;
transition-duration: 0.8s;
-webkit-transition-property: -webkit-transform;
-moz-transition-pr...
How can I get dict from sqlite query?
...ow_factory to the highly-optimized
sqlite3.Row type. Row provides both
index-based and case-insensitive
name-based access to columns with
almost no memory overhead. It will
probably be better than your own
custom dictionary-based approach or
even a db_row based solution.
...
Watch multiple $scope attributes
...s array contains the current values of the watch expressions
// with the indexes matching those of the watchExpression array
// i.e.
// newValues[0] -> $scope.foo
// and
// newValues[1] -> $scope.bar
});
...
Is there a way to make R beep/play a sound at the end of a script?
...ve it tweet when it's done: http://cran.r-project.org/web/packages/twitteR/index.html
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