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Finding last occurrence of substring in string, replacing that
...ce have to be reversed too. Otherwise when you reverse the string a second time the letters you just inserted will be backwards. You can only use this if you're replacing one letter with one letter, and even then I wouldn't put this in your code incase someone has to change it in the future and st...
Error 1046 No database Selected, how to resolve?
...nch (I'm in v5.2.47) if you're getting this error. Only need to run it one time per query tab - all subsequent executions on that tab seem to use the database correctly.
– DACrosby
Nov 5 '13 at 3:23
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How to get the first non-null value in Java?
...easons that i mentioned above is that an array allocation will happen each time you invoke the var arg version of the method. this could be wasteful for hand-fulls of items, which i suspect will be common usage.
– les2
May 4 '10 at 18:54
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Get image data url in JavaScript?
...ase64 version of an image file, they have to request it again (most of the time it will come from cache) but this time as a Blob.
Then you can use a FileReader to read it either as an ArrayBuffer, or as a dataURL.
function toDataURL(url, callback){
var xhr = new XMLHttpRequest();
x...
Local file access with JavaScript
...t this dramatically extends the reach of web apps and is not going away anytime soon.
– bbsimonbb
Dec 2 '15 at 9:42
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How to resolve git stash conflict without commit?
...sually solves all or majority of conflicts automatically itself. It's huge time-saver!
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
... has to keep track of the thread who actually obtained the mutex the first time around so that it can detect the difference between recursion vs. a different thread that should block instead. As another answer pointed out, there is a question of the additional overhead of this both in terms of memor...
Sending Arguments To Background Worker?
... this (like I tried to do), you have to create a new backgroundworker each time (in your example you did). Else you will have an issue like I did. My backgroundworker would keep repeating the previous runs. If run once it was fine. 2 times it repeated last run and current run. 3rd run would repeat l...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...R - these are requests made by javascript code.
Tip: log is cleared every time you load a page, at the bottom of the picture, the black dot button will preserve log.
After analyzing requests and responses you can simulate these requests from your web-crawler and extract valuable data. In many case...
Mark parameters as NOT nullable in C#/.NET?
...l from being passed in C#/.NET? Ideally this would also check at compile time to make sure the literal null isn't being used anywhere for it and at run-time throw ArgumentNullException .
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