call

JavaScript: Detect AJAX requests

只谈情不闲聊 提交于 2019-11-27 00:38:56
Is there any way to detect global AJAX calls (particularly responses) on a web page with generic JavaScript (not with frameworks)? I've already reviewed the question " JavaScript detect an AJAX event ", here on StackOverflow, and tried patching in the accepted answer's code into my application but it didn't work. I've never done anything with AJAX before either so, I don't know enough to modify it to work. I don't need anything fancy, I just need to detect all (specific, actually, but I'd have to detect all first and go from there) AJAX responses and patch them into an IF statement for use. So

How to execute a function asynchronously every 60 seconds in Python?

一个人想着一个人 提交于 2019-11-27 00:30:33
I want to execute a function every 60 seconds on Python but I don't want to be blocked meanwhile. How can I do it asynchronously? import threading import time def f(): print("hello world") threading.Timer(3, f).start() if __name__ == '__main__': f() time.sleep(20) With this code, the function f is executed every 3 seconds within the 20 seconds time.time. At the end it gives an error and I think that it is because the threading.timer has not been canceled. How can I cancel it? Thanks in advance! David Underhill You could try the threading.Timer class: http://docs.python.org/library/threading

Scala - infix vs dot notation

∥☆過路亽.° 提交于 2019-11-27 00:27:14
问题 Is there a best practice for one over the other? I've been reading the Scala book by Odersky, et al. and it seems like infix is used for a lot of the Collections API functions, whereas dot is reserved for programmer-defined functions. 回答1: I personally do not have any hard and fast rules for this, but I tend to use infix notation only with symbolic method names, and dot notation for alphanumeric ones. Infix notation makes it cumbersome to modify code later. Here are some examples. Imagine you

How to pass a callback as a parameter into another function

£可爱£侵袭症+ 提交于 2019-11-26 23:58:45
I'm new to ajax and callback functions, please forgive me if i get the concepts all wrong. Problem: Could i send a callbackfunction as a parameter to another function that will execute the callback? function firstFunction(){ //some code //a callback function is written for $.post() to execute secondFunction("var1","var2",callbackfunction); } function secondFunction(var1, var2, callbackfunction) { params={} if (event != null) params = event + '&' + $(form).serialize(); // $.post() will execute the callback function $.post(form.action,params, callbackfunction); } Yup. Function references are

Why does call-by-value example not modify input parameter?

时间秒杀一切 提交于 2019-11-26 23:19:07
In the following call-by-value example, I cannot understand why this code is not changing the value of the 5 to a 6. Line 11 calls the function changeValue which has the value 6, so I would have thought 6 should be output, however 5 is still output? #include <iostream> using namespace std; void changeValue(int value); int main() { int value = 5; changeValue(value); cout << "The value is : " << value << "." << endl; return 0; } void changeValue(int value) { value = 6; } // This doesn't change the value from 5 to 6. 5 is output? When you pass a function argument by value a copy of the object

Call a custom GAS function from external URL

冷暖自知 提交于 2019-11-26 22:36:08
I want to call a custom function I wrote within my Google Apps Script. When I execute a getJSON I suppose it'll automatically run my doGet(e). My Javascript: $.getJSON(https://script.google.com/macros/s/[ID]/exec, function(data){ //code here }); Is there a possible way to call one of my custom functions for example My Google Apps Script: function getNumberOfFans(e){ //code here } Do I have to add some kind of extra function parameter to my URL? In either a "stand alone" or bound Apps Script file add a doGet(e) function. Publish the Apps Script file as a Web App. Get the published URL of the

Running bash script from within python

末鹿安然 提交于 2019-11-26 21:47:58
I have a problem with the following code: callBash.py: import subprocess print "start" subprocess.call("sleep.sh") print "end" sleep.sh: sleep 10 I want the "end" to be printed after 10s. (I know that this is a dumb example, I could simply sleep within python, but this simple sleep.sh file was just as a test) Making sleep.sh executable and adding shell=True to the parameter list (as suggested in previous answers) works ok. Depending on the search path, you may also need to add ./ or some other appropriate path. (Ie, change "sleep.sh" to "./sleep.sh" .) The shell=True parameter is not needed

How to call external dll function from java code

早过忘川 提交于 2019-11-26 21:39:05
问题 I need to call external DLL library function from Java code. I use Netbeans 7.2. My dll's functions are: Boolean isValid(string word) List<String> getWords(String word) I'm following this example. But I don't know how declare my dll functions. And I found another link. But it doesn't work for me. 回答1: I stumbled upon the same problem of "calling DLL from Java" and first was frustrated about the complexity. Yet, there is an elegant solution (might also be interesting for the people over there

Capture both exit status and output from a system call in R

北城以北 提交于 2019-11-26 21:33:58
问题 I've been playing a bit with system() and system2() for fun, and it struck me that I can save either the output or the exit status in an object. A toy example: X <- system("ping google.com",intern=TRUE) gives me the output, whereas X <- system2("ping", "google.com") gives me the exit status (1 in this case, google doesn't take ping). If I want both the output and the exit status, I have to do 2 system calls, which seems a bit overkill. How can I get both with using only one system call? EDIT

Unicode filename to python subprocess.call() [duplicate]

只谈情不闲聊 提交于 2019-11-26 21:17:04
问题 This question already has answers here : Unicode filenames on Windows with Python & subprocess.Popen() (5 answers) Closed 4 years ago . I'm trying to run subprocess.call() with unicode filename, and here is simplified problem: n = u'c:\\windows\\notepad.exe ' f = u'c:\\temp\\nèw.txt' subprocess.call(n + f) which raises famous error: UnicodeEncodeError: 'ascii' codec can't encode character u'\xe8' Encoding to utf-8 produces wrong filename, and mbcs passes filename as new.txt without accent I