大约有 45,000 项符合查询结果（耗时：0.0390秒） [XML]
How to find the array index with a value?
..."rollnumber": 3,
"name": "amit",
"subject": "chemistry"
},
];
Now if we have a requirement to select a particular object in the array. Let us assume that we want to find index of student with name Tanmay.
We can do that by iterating through the array and comparing value at the given ke...
Is there any JSON Web Token (JWT) example in C#?
...Time(1970,1,1,0,0,0,0, DateTimeKind.Utc);
var issueTime = DateTime.Now;
var iat = (int)issueTime.Subtract(utc0).TotalSeconds;
var exp = (int)issueTime.AddMinutes(55).Subtract(utc0).TotalSeconds; // Expiration time is up to 1 hour, but lets play on safe side
var payl...
Elegant ways to support equivalence (“equality”) in Python classes
...(1)
n1 == n2 # False -- oops
So, Python by default uses the object identifiers for comparison operations:
id(n1) # 140400634555856
id(n2) # 140400634555920
Overriding the __eq__ function seems to solve the problem:
def __eq__(self, other):
"""Overrides the default implementation"""
if...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...For java it's still just "utf-8", but MySQL needs a distinction.
I don't know what driver you are using but a driver agnostic way to set connection charset is to send the query:
SET NAMES 'utf8mb4'
Right after making the connection.
See also this for Connector/J:
14.14: How can I use 4-byt...
Catch Ctrl-C in C
...ither use sig_atomic_t or atomic_bool types there. I just missed that one. Now, since we are talking: would you like me to rollback my latest edit? No hard feelings there it would be perfectly understandable from your point of view :)
– Peter Varo
May 18 '17 at...
Does Java SE 8 have Pairs or Tuples?
...c, and it wouldn't have satisfied many of the use cases we are envisioning now. Consider that if Pair had been added in the JDK 1.0 time frame, it probably would have been mutable! (Look at java.util.Date.) Would people have been happy with that? My guess is that if there were a Pair class in Java, ...
Is there a recommended format for multi-line imports?
...
Ah ok, I see what you mean now :)
– Gandalf Saxe
Aug 2 '18 at 13:18
add a comment
|
...
Reading header data in Ruby on Rails
...
Rails now attaches HTTP_ to the header as well as converting it to all caps so it would now be:
request.headers["HTTP_CONTENT_TYPE"]
share
|
...
Save ArrayList to SharedPreferences
...
I'm sorry, I don't have an Android SDK to test it now, but take a look here: benjii.me/2010/04/deserializing-json-in-android-using-gson . You should iterate over the json array and do what they do there for each object, hopefully I'll be able to post an edit to my answer wit...
Check to see if python script is running
...cates a non-graceful shutdown, which means the app crashed. That lets you know there's a problem, and to check the logs. As mentioned, the atexit module can also take care of this, assuming the bug isn't in the Python interpreter itself.
– Dan Udey
May 30 '11 a...