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mongo group query how to keep fields
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Thanks! Got it better (avoid messing the order with a Set) : data : {$addToSet: {name: '$name', _id: '$_id', age: '$age' } }
– Benoit
Jun 19 '19 at 22:59
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Java: parse int value from a char
...2' - '0' you really just get 50 - 48 = 2. Have a look at an ASCII table in order to understand this principle better. Also, 'x' means get the ascii value of the character in Java.
– Kevin Van Ryckegem
May 13 '17 at 13:16
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vertical-align with Bootstrap 3
...l-xs-5 col-md-3 col-lg-1 vcenter">
<div style="height:10em;border:1px solid #000">Big</div>
</div><!--
--><div class="col-xs-5 col-md-7 col-lg-9 vcenter">
<div style="height:3em;border:1px solid #F00">Small</div>
</div&...
Get table column names in MySQL?
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How about this:
SELECT @cCommand := GROUP_CONCAT( COLUMN_NAME ORDER BY column_name SEPARATOR ',\n')
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table';
SET @cCommand = CONCAT( 'SELECT ', @cCommand, ' from my_database.my_table;');
PREPARE xCo...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
...y=pretty">
there's nothing mod_rewrite can do to make that pretty. In order to make this a pretty link, you have to:
Change the link to a pretty link:
<a href="/my/pretty/link">
Use mod_rewrite on the server to handle the request to the URL /my/pretty/link using any one of the methods...
onKeyPress Vs. onKeyUp and onKeyDown
...y triggers both handlers to be pushed into the event queue, but in a fixed order. "you just want to have an argument for argument's sake" - Eh? The core thesis of your answer is that keypress, keyup, and keydown are analogous to click, mouseup, and mousedown. The natural interpretation of that, to m...
When to use Vanilla JavaScript vs. jQuery?
... this answer for a better treatment.
el.getAttribute('someName');
...in order to access an attribute directly. Note that attributes are not the same as properties (though they mirror each other sometimes). Of course there's setAttribute too.
Say you had a situation where received a page where yo...
Is the pImpl idiom really used in practice?
...hose benefits come at a cost: an extra level of indirection is required in order to access the implementation methods.
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Concrete Javascript Regex for Accented Characters (Diacritics)
...× ÷
See https://unicode-table.com/en/ for characters listed in numeric order.
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Does Java support default parameter values?
...is difficult. A definite case is where you have to differentiate using the order of parameters, not just number and type.
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