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What's the difference between struct and class in .NET?
...or a struct, that means that the variable contains the entire struct, with all its fields.
A variable containing a reference type contains a pointer, or a reference to somewhere else in memory where the actual value resides.
This has one benefit, to begin with:
value types always contains a valu...
Git says “Warning: Permanently added to the list of known hosts”
...
Works great! Finally the stupid warning stopped. Btw on Windows, the ~ in ~/.ssh/config is the user's home folder. To open it easily, Press Win-R, type cmd Enter. Command prompt should already open in your home folder. Type cd .ssh Enter, an...
Asking the user for input until they give a valid response
...logic.
while True:
data = input("Please enter a loud message (must be all caps): ")
if not data.isupper():
print("Sorry, your response was not loud enough.")
continue
else:
#we're happy with the value given.
#we're ready to exit the loop.
break
w...
Is it valid to replace http:// with // in a ?
... we test our sites in Firefox, Safari, IE6, IE7 and Opera. These browsers all understand that URL format.
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Node.js - getting current filename
... Unless your extension isn't 2 characters long, which is totally possible because you can bind script interpretation to any file extension you want... so this may not be a good all-around solution.
– ErikE
Mar 14 '19 at 1:57
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Chaining multiple filter() in Django, is this a bug?
I always assumed that chaining multiple filter() calls in Django was always the same as collecting them in a single call.
4...
How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?
...nchronous option to be false to get a synchronous Ajax request. Then your callback can set some data before your mother function proceeds.
Here's what your code would look like if changed as suggested:
beforecreate: function (node, targetNode, type, to) {
jQuery.ajax({
url: 'http://exa...
Populating a database in a Laravel migration file
...anges consistently so that you can for example deploy to staging, see that all is well, and then deploy to production with confidence of the same results (and not have to remember to run some manual step).
However, there is still value in separating out the seed and the migration as those are two r...
Format date and time in a Windows batch script
...
All this can be done in just 2 lines using ordinary string replacement: stackoverflow.com/a/23558738/1879699
– Andreas
Apr 22 '16 at 9:34
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...g algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try different parameters within each algorithm as well), and select the best one by cross-validation. But if you’re simply l...