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Replace a value if null or undefined in JavaScript
..., is an object, and not an array, so you cannot simply retrieve a property based on an index, since there is no specific order of their properties. The only way to retrieve their values is by using the specific name:
var someVar = options.filters.firstName; //Returns 'abc'
Or by iterating over th...
Foreign Key to multiple tables
I've got 3 relevant tables in my database.
5 Answers
5
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How to update a pull request from forked repo?
...l automatically update. The process is:
Open pull request
Commit changes based on feedback in your local repo
Push to the relevant branch of your fork
The pull request will automatically add the new commits at the bottom of the pull request discussion (ie, it's already there, scroll down!)
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Java “user.dir” property - what exactly does it mean?
I want to use user.dir dir as a base dir for my unit tests (that creates a lot of files). Is it correct that this property points to the current working directory (e.g. set by the 'cd' command)?
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Consequences of using graft in Mercurial
...ges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +e +f
---- C ---- D ---- E ---- F ----
Turn the graph 90 degrees clockwise and the above three-way merge looks like ...
Difference between jQTouch and jQuery mobile
...er cross platform support. JQTouch is very lightweight and great for "form-based" apps that just need navigation. It is missing a lot of the features that users have asked for, and have been turned down, like fixed footers and tabbars.
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What is the most efficient way to store tags in a database?
...[]
For more info, see this excellent post by Josh Berkus:
http://www.databasesoup.com/2015/01/tag-all-things.html
There are more various options compared thoroughly for performance and the one suggested above is the best overall.
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Hex representation of a color with alpha channel?
...led).
IE 11 and EdgeHTML 18 (Edge 44) do not support this syntax. Chromium-based versions of Edge will support this syntax.
Up to date browser support information is available on CanIUse.com
*Technically still in draft, but given the browser support this is unlikely to be changed.
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Binding a Button's visibility to a bool value in ViewModel
... null, or implementing multi-state displays where different layouts appear based on the setting of an enum in the view model.
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Using Build Flavors - Structuring source folders and build.gradle correctly
...ierDucrohet how about having different resources as well as different code based on flavors, but have them in different modules so that we can include one module or the other based on the flavor, without having to mix code and resources in the same root project? Is that supported?
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