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How to check for file lock? [duplicate]
...uld become locked the very next second (read: short timespan).
Why specifically do you need to know if the file is locked anyway? Knowing that might give us some other way of giving you good advice.
If your code would look like this:
if not locked then
open and update file
Then between the ...
finding and replacing elements in a list
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This is a bad and very un-pythonic solution. Consider using list comprehension.
– AdHominem
Dec 31 '16 at 11:56
233
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HTML - how can I show tooltip ONLY when ellipsis is activated
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If you want the tooltip automatically removed if the text is no longer overflowing modify to: $(document).on('mouseenter', '.mightOverflow', function() { var $t = $(this); var title = $t.attr('title'); if (!title){ if (this.offsetWidth < this.scr...
Const in JavaScript: when to use it and is it necessary?
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@Rudie The feature you are looking for is called freezing the object. const just prevents reassigning the "variable" to another value. const a = {}; a = {}; will throw an error in strict mode.
– Tibos
Nov 28 '15 at 10:42
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Change R default library path using .libPaths in Rprofile.site fails to work
...mentioned that the result from this operation also appends the contents of calls to .Library and .Library.site, which is further reason why an RStudio- (or any other IDE or network installed-) hosted R might exhibit different behavior.
Since Sys.getenv() returns the current system environment for t...
Why does the is operator return false when given null?
... you, check out my recent articles on the subject:
What is this thing you call a "type"? Part one
What is this thing you call a "type"? Part Two
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String is immutable. What exactly is the meaning? [duplicate]
...o by s, and the second one "knowledge base", pointed to by str. But, technically, we have three String objects, the third one being the literal "base" in the concat statement.
Important Facts about String and Memory usage
What if we didn't have another reference s to "knowledge"? We would have los...
C++ Singleton design pattern
...n design pattern that is lazy-evaluated, guaranteed-destruction, not-technically-thread-safe:
Can any one provide me a sample of Singleton in c++?
Here is an updated C++11 implementation of the Singleton design pattern that is lazy-evaluated, correctly-destroyed, and thread-safe.
class S
{
p...
Is there a better alternative than this to 'switch on type'?
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edited Feb 23 at 4:25
Callum Watkins
2,22222 gold badges2323 silver badges4040 bronze badges
answered Nov 18 '08 at 15:44
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How can I use jQuery in Greasemonkey scripts in Google Chrome?
... on Google Chrome.
// ==/UserScript==
// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {
var script = document.createElement("script");
script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js")...