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Ruby's ||= (or equals) in JavaScript?
...|= mechanism. If a variable doesn't exist or is nil , then create it and set it equal to something:
6 Answers
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Enable the display of line numbers in Visual Studio
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You should check "Show All Settings" check box at the bottom of options window to see "line number" check box
– Janaka R Rajapaksha
May 21 '14 at 16:28
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Validating parameters to a Bash script
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remember to set +e and use '-eq' instead of '==' for integer comparisons
– guns
Mar 31 '09 at 0:50
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How can I hide an HTML table row so that it takes up no space?
... <tr> so that it takes up no space? I have several <tr> 's set to style="display:none;" , but they still affect the size of the table and the table's border reflects the hidden rows.
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How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
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Given it's a raw expression, you should use DB::raw() to set CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->default(DB::raw('CURRENT_TIMESTAMP'));
This works flawlessly on every database driver.
New shortcut
As of Laravel 5.1.25 (see ...
Disable resizing of a Windows Forms form
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Note that setting MaximizeBox to false is necessary to prevent the user from maximizing via Windows key + up. Setting ControlBox to false is not good enough.
– David Sherret
Feb 24 at 22:24
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What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
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Browsers are in control of setting the Origin header, and users can't override this value. So you won't see the Origin header spoofed from a browser. A malicious user could craft a curl request that manually sets the Origin header, but this request wou...
NSAttributedString add text alignment
...ple:
CTTextAlignment alignment = kCTCenterTextAlignment;
CTParagraphStyleSetting alignmentSetting;
alignmentSetting.spec = kCTParagraphStyleSpecifierAlignment;
alignmentSetting.valueSize = sizeof(CTTextAlignment);
alignmentSetting.value = &alignment;
CTParagraphStyleSetting settings[1] = {ali...
What does `node --harmony` do?
... bool default: false
--harmony_collections (enable harmony collections (sets, maps, andweak maps))
type: bool default: false
--harmony (enable all harmony features (except typeof))
type: bool default: false
So --harmony is a shortcut to enable all the harmony features (e.g. ...
Add a column to existing table and uniquely number them on MS SQL Server
...e problems making change with the management studio gui you can change the settings under /Tools/Options/Designer/Table and Database Desiger you will find a checkbox Prevent saving changes that require table re-creation uncheck that box and you will be able to add an identity column even by using th...