大约有 46,000 项符合查询结果（耗时：0.0408秒） [XML]
Serializing object that contains cyclic object value
...cycle or this (simpler) function which just replaces recursive references with nulls:
function decycle(obj, stack = []) {
if (!obj || typeof obj !== 'object')
return obj;
if (stack.includes(obj))
return null;
let s = stack.concat([obj]);
return Ar...
UTF-8: General? Bin? Unicode?
...r various types of data. 100% of the content I will be storing is user-submitted.
5 Answers
...
Create a “with” block on several context managers? [duplicate]
...
In Python 2.7 and 3.1 and above, you can write:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods.
In Python 3.3, you can...
How to read a file into a variable in shell?
I want to read a file and save it in variable, but I need to keep the variable and not just print out the file.
How can I do this? I have written this script but it isn't quite what I needed:
...
How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
I am trying to write a program where the names of some functions are dependent on the value of a certain macro variable with a macro like this:
...
Why use String.Format? [duplicate]
...
I can see a number of reasons:
Readability
string s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling);
vs:
string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!"...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...o get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated in the original problem.
...
How to concatenate properties from multiple JavaScript objects
...merable own properties from one or more source objects to a target object. It will return the target object.
MDN documentation on Object.assign()
var o1 = { a: 1 };
var o2 = { b: 2 };
var o3 = { c: 3 };
var obj = Object.assign({}, o1, o2, o3);
console.log(obj); // { a: 1, b: 2, c: 3 }
...
How to get all registered routes in Express?
...using Node.js and Express. Now I would like to list all registered routes with their appropriate methods.
24 Answers
...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
...EU Article 5(3) of the E-Privacy Directive (a.k.a 'The Cookie Laws'), web sites that target EU users have to gain opt-in consent from users before they set a cookie.
...