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Substitute multiple whitespace with single whitespace in Python [duplicate]

...also many other characters, for example the non-breaking spaces mandated by typography rules in many languages). If the ASCII flag is used, only [ \t\n\r\f\v] is matched. About re.ASCII: Make \w, \W, \b, \B, \d, \D, \s and \S perform ASCII-only matching instead of full Unicode matching. T...
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Prevent Default on Form Submit jQuery

...ery: // Gets a reference to the form element var form = document.getElementById('cpa-form'); // Adds a listener for the "submit" event. form.addEventListener('submit', function(e) { e.preventDefault(); }); You don't need to use return false to solve this problem. ...
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Asp.net - Add blank item at top of dropdownlist

...eed to watch out for is having your dropdown list grow after each postback by appending the same data over and over. – Keith Sirmons Nov 5 '08 at 23:07 ...
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Disable dragging an image from an HTML page

... You can like this... document.getElementById('my-image').ondragstart = function() { return false; }; See it working (or not working, rather) It seems you are using jQuery. $('img').on('dragstart', function(event) { event.preventDefault(); }); ...
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Write a number with two decimal places SQL server

...: STR(1223,2) truncates the result set to **. – Mark Byers May 25 '12 at 9:41 add a comment ...
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How to delete a file after checking whether it exists

...o // handle the case of the file already being // opened by another process. try { System.IO.File.Delete(@"C:\Users\Public\DeleteTest\test.txt"); } catch (System.IO.IOException e) { Console.WriteLine(e.Message); ...
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How do I remove background-image in css?

...If it is more complicated, you need a "more specific" selector, as defined by the CSS specification on specificity. (#a being more specific than div is just single aspect in the algorithm.)
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How do I plot in real-time in a while loop using matplotlib?

... Thanks a lot for the basic code. It helped me to build up some simple UI by modifying and adding features around based on your code. It saved my time = ] – Isaac Sim Dec 18 '18 at 0:30 ...
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...use * this interface potentially. * * LATER: length must be adjusted by pad at tail, when it is required. */ int ip_append_data(struct sock *sk, struct flowi4 *fl4, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int l...
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best way to get the key of a key/value javascript object

... get all keys, ECMAScript 5 introduced Object.keys. This is only supported by newer browsers but the MDC documentation provides an alternative implementation (which also uses for...in btw): if(!Object.keys) Object.keys = function(o){ if (o !== Object(o)) throw new TypeError('Object.k...