大约有 40,000 项符合查询结果(耗时:0.0572秒) [XML]

https://stackoverflow.com/ques... 

How to create an object for a Django model with a many to many field?

... For future visitors, you can create an object and all of its m2m objects in 2 queries using the new bulk_create in django 1.4. Note that this is only usable if you don't require any pre or post-processing on the data with save() methods or signals. What you insert is exactly...
https://stackoverflow.com/ques... 

Rails: How does the respond_to block work?

...html The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop. Ruby has a feature called method_missing. If you call a method that doesn't exist (like json or html), Ruby calls the method_missing method instead. http://ruby-meta...
https://stackoverflow.com/ques... 

What is the best way to repeatedly execute a function every x seconds?

...uler. import sched, time s = sched.scheduler(time.time, time.sleep) def do_something(sc): print("Doing stuff...") # do your stuff s.enter(60, 1, do_something, (sc,)) s.enter(60, 1, do_something, (s,)) s.run() If you're already using an event loop library like asyncio, trio, tkinter,...
https://stackoverflow.com/ques... 

How to decode HTML entities using jQuery?

...the approach from either that answer or Mark Amery's answer instead. Actually, try var decoded = $("<div/>").html(encodedStr).text(); share | improve this answer | ...
https://stackoverflow.com/ques... 

Haml: Control whitespace around text

...t;a href='thing'>here</a>. precede: = precede '*' do %span.small Not really Produces: *<span class='small'>Not really</span> To answer the original question: I will first = succeed ',' do = link_to 'link somewhere', 'http://example.com' - if @condition then render...
https://stackoverflow.com/ques... 

How to fix the “java.security.cert.CertificateException: No subject alternative names present” error

...ager that does not validate certificate chains TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509...
https://stackoverflow.com/ques... 

Uploading both data and files in one form using Ajax?

... on_complete(response); }); } } it works well with all browsers, you don't need to serialize or prepare the data. one down side is that you can't monitor the progress. also, at least for chrome, the request will not appear in the "xhr" tab of the developer tools but under "d...
https://stackoverflow.com/ques... 

Detect current device with UI_USER_INTERFACE_IDIOM() in Swift

What is the equivalent of UI_USER_INTERFACE_IDIOM() in Swift to detect between iPhone and iPad? 17 Answers ...
https://stackoverflow.com/ques... 

How do I make a textbox that only accepts numbers?

... with this two event handlers on a standard TextBox: private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && (e.KeyChar != '.')) { e.Handled = true; } // only allow one de...
https://stackoverflow.com/ques... 

JavaScript: filter() for Objects

...rible things will happen to your code. Things will break. You're extending all object types, including object literals. Here's a quick example you can try: // Extend Object.prototype Object.prototype.extended = "I'm everywhere!"; // See the result alert( {}.extended ); // "I'm ev...