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MySQL, update multiple tables with one query
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Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books tab...
Remove characters from NSString?
... i like it! I want to remove all special char in a phone number and keep only digits.
– karim
Mar 15 '11 at 16:23
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Why did Rails4 drop support for “assets” group in the Gemfile
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Previously the assets group existed to avoid unintended compilation-on-demand in production. As Rails 4 doesn't behave like that anymore, it made sense to remove the asset group.
This is explained in more detail in the commit that changed that. I extracted some quotes with the actual answer.
Some ...
handlerbars.js check if list is empty
Is there a way in Handlebars.js templating to check if the collection or list is null or empty, before going and iterating through the list/collection?
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How to delete files older than X hours
...all files with my find. My fault for not checking this first, but this command just deleted most of my home directory. For me, --mmin -X is the correct argument.
– brandones
Oct 16 '13 at 0:08
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How can I change property names when serializing with Json.net?
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As a shorthand, you can also do [JsonProperty("FooBar")]
– Bart Verkoeijen
Feb 16 '15 at 5:49
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What does passport.session() middleware do?
...entication system using Passport.js using Easy Node Authentication: Setup and Local tutorial .
4 Answers
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Preferred way of loading resources in Java
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it will attempt to load foo.txt from the same package as the "this" class and with the class loader of the "this" class. If you put a "/" in front then you are absolutely referencing the resource.
this.getClass().getResource("/x/y/z/foo.txt")
will load the resource from the class loader of "this...
How to backup a local Git repository?
I am using git on a relatively small project and I find that zipping the .git directory's contents might be a fine way to back up the project. But this is kind of weird because, when I restore, the first thing I need to do is git reset --hard .
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R: rJava package install failing
When installing rJava using the install.packages("rJava") command I get the following error:
16 Answers
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