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Why does Clojure have “keywords” in addition to “symbols”?
I have a passing knowledge of other Lisps (particularly Scheme) from way back. Recently I've been reading about Clojure . I see that it has both "symbols" and "keywords". Symbols I'm familiar with, but not with keywords.
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svn : how to create a branch from certain revision of trunk
The following action will only create a branch from the head revision of the trunk. How do I create a branch from a specific revision? Thanks.
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Django auto_now and auto_now_add
...cts I have written using Django, and so your save() would look like this:
from django.utils import timezone
class User(models.Model):
created = models.DateTimeField(editable=False)
modified = models.DateTimeField()
def save(self, *args, **kwargs):
''' On save, update ti...
Getting realtime output using subprocess
...for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is output.
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You asked me to pull without telling me which branch you want to merge with
...h.bucket-4.merge or branch.bucket-4.remote in your git config. The output from git remote show origin is just showing you where the branch would be pushed by default.
Is there some configuration I can add in order to make all local branches track their remotes properly in the future?
I don't ...
How can I list all tags in my Git repository by the date they were created?
... fields will correspond to the appropriate date or name-email-date tuple
from the committer or tagger fields depending on the object type.
These are intended for working on a mix of annotated and lightweight tags.
So using creatordate works with tags:
git for-each-ref --format='%(*creatordate...
What's the magic of “-” (a dash) in command-line parameters?
...command, every time you change directory, it stores the directory you came from. If you do cd with the special - "directory name", it uses that remembered directory instead of a real one. You can easily switch between two directories quite quickly by using that.
Other commands may treat - as a diff...
How can I echo HTML in PHP?
...sing a template engine is keeping the design (presentation logic) separate from the coding (business logic). It also makes the code cleaner and easier to maintain in the long run.
If you have any more questions feel free to leave a comment.
Further reading is available on these things in the PHP doc...
fatal: 'origin' does not appear to be a git repository
I've a repository moodle on my Github account which I forked from the official repository.
6 Answers
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Delete/Reset all entries in Core Data?
...tten a clearStores method that goes through every store and delete it both from the coordinator and the filesystem (error handling left aside):
NSArray *stores = [persistentStoreCoordinator persistentStores];
for(NSPersistentStore *store in stores) {
[persistentStoreCoordinator removePersisten...