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What does = +_ mean in JavaScript

...ample: +"1" cast "1" to pure number 1. var _ = "1"; var r = +_; r is now 1, not "1". Moreover, according to the MDN page on Arithmetic Operators: The unary plus operator precedes its operand and evaluates to its operand but attempts to converts it into a number, if it isn't already. [...
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How to make an empty div take space

...floated, and certainly in my own case that worked. If that is always true (now, in 2016) then this answer is wrong. You can just add min-height: 1px; to the width: 140px; without the need to either to remove the float or add content. – Nick Rice Aug 8 '16 at 12...
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Generate class from database table

...hen 'byte[]' when 'varchar' then 'string' else 'UNKNOWN_' + typ.name end ColumnType, case when col.is_nullable = 1 and typ.name in ('bigint', 'bit', 'date', 'datetime', 'datetime2', 'datetimeoffset', 'decimal', 'float', 'int', 'money', 'numeric', ...
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Why can't I do ?

...answered the why and gave some ways around it. What I'll likely do (and I know I didn't provide much background) is create a local webserver to serve local images. That way the browser can display them. – PeterV Nov 4 '10 at 1:26 ...
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How to test if parameters exist in rails

...I, but I'm sure that's safe enough. I've been calling params.to_h.key? for now. – stephen.hanson Nov 9 '16 at 19:38  |  show 12 more comments ...
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Searching if value exists in a list of objects using Linq

... I know this is an old question but why aren't we making use of the Exists method? Seeing as it is made to see if things exist. – Blackunknown Jul 9 '14 at 9:29 ...
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VBoxManage: error: Failed to create the host-only adapter

...upport/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart You should now be able to run vagrant up or vagrant reload and have your new host configured. As mentioned in this answer, recent versions of macOS can block VirtualBox. Solution: Go to System Preferences > Security & Pri...
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How set the android:gravity to TextView from Java side in Android

... Thanks that worked. I feel a little silly now for missing that. Originally the problem was setting the margins on a text field. I guess I assumed because i couldnt find a setMargin() method that setGravity wouldnt exist either. – Nate ...
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Change font size macvim?

...nging anything else about it. Then you can use :set gfn to see what it is now set to and add that to your .vimrc. As an example, in my case it shows guifont=Monaco:h12 and so in order to get the same setting on startup, I added set gfn=Monaco:h12 to my .vimrc. ...
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What is the C++ function to raise a number to a power?

... pow(double, int); pow(long double, long double); pow(long double, int); Now you can't just do pow(2, N) with N being an int, because it doesn't know which of float, double, or long double version it should take, and you would get an ambiguity error. All three would need a conversion from int ...