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How do you avoid over-populating the PATH Environment Variable in Windows?
...ur system. For example I have almost everything accessible through the command line, but now I come to the limit of the path string, so i can't add any more dir.
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Batch file to delete files older than N days
...ll files older than 7 days in a batch file. I've searched around the web, and found some examples with hundreds of lines of code, and others that required installing extra command line utilities to accomplish the task.
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What is the purpose of the word 'self'?
What is the purpose of the self word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this:
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What's the point of malloc(0)?
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The C standard (C17 7.22.3/1) says:
If the size of the space requested is zero, the behavior is implementation defined:
either a null pointer is returned, or the behavior is as if the size were some
nonzero value, except that...
What is the list of possible values for navigator.platform as of today? [closed]
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Disclaimer: please note this property is sent by the browser and can thus be faked, just like user agent strings. Never rely on the navigator object to be completely accurate.
The definition
As far as I know there isn't a single public list of all possible `navigator.platform` values, ...
Intent - if activity is running, bring it to front, else start a new one (from notification)
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You can use this:
<activity
android:name=".YourActivity"
android:launchMode="singleTask"/>
which will work similar to "singleInstance" but it won't have that weird animation.
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Why can I type alias functions and use them without casting?
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Turns out, this is a misunderstanding that I had about how Go dealt with types, which can be resolved by reading the relevant part of the spec:
http://golang.org/ref/spec#Type_identity
The relevant distinction that I was unaware of was that of named and ...
Facebook API “This app is in development mode”
...t mode" mean for a facebook app? I find no exact explanation of what I can and can't do while in development mode and what's the relation with the "Not available to all users because your app is not live".
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MongoDB/NoSQL: Keeping Document Change History
...his approach is fine though when you're dealing with small-sized documents and/or don't update documents very often.
Only store changes in a new version
Another approach would be to store only the changed fields in a new version. Then you can 'flatten' your history to reconstruct any version of th...
Possible to do a MySQL foreign key to one of two possible tables?
...table.
Polymorphic Associations are supported by frameworks such as Rails and Hibernate. But they explicitly say that you must disable SQL constraints to use this feature. Instead, the application or framework must do equivalent work to ensure that the reference is satisfied. That is, the value ...