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How do I get the path of a process in Unix / Linux
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sudo if output is empty, some processes are created by other system users.
– Lun4i
Sep 2 '17 at 5:21
add ...
Access Enum value using EL with JSTL
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For those requiring a source: This is specified (for instance) in section 1.17 of the "Expression Language Specification, version 2.2", which is part of JSR-245.
– meriton
Aug 6 '10 at 16:57
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Python: finding an element in a list [duplicate]
...f an item that has value > 100.
for index, item in enumerate(arr):
if item > 100:
return index, item
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Contains case insensitive
...ng in a lower case string. Then, use .indexOf() using ral instead of Ral.
if (referrer.toLowerCase().indexOf("ral") === -1) {
The same can also be achieved using a Regular Expression (especially useful when you want to test against dynamic patterns):
if (!/Ral/i.test(referrer)) {
// ^i = ...
Django. Override save for model
Before saving model I'm re-size a picture. But how can I check if new picture added or just description updated, so I can skip rescaling every time the model is saved?
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Get current domain
... -1: With this answer alone, I do not know exactly what the different suggestions I am looking at do. Sure, this gives me a point to continue looking from, but by itself this is really not a good answer...
– Jasper
Oct 27 '15 at 13:35
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Accessing JPEG EXIF rotation data in JavaScript on the client side
...te photos based on their original rotation, as set by the camera in JPEG EXIF image data. The trick is that all this should happen in the browser, using JavaScript and <canvas> .
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how to check if object already exists in a list
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It depends on the needs of the specific situation. For example, the dictionary approach would be quite good assuming:
The list is relatively stable (not a lot of inserts/deletions, which dictionaries are not optimized for)
The list is quite large (otherwise t...
Simplest way to check if key exists in object using CoffeeScript
In CoffeeScript, what is the simplest way to check if a key exists in an object?
3 Answers
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How to remove all the occurrences of a char in c++ string
...erase(std::remove(str.begin(), str.end(), 'a'), str.end());
Or use boost if that's an option for you, like:
#include <boost/algorithm/string.hpp>
boost::erase_all(str, "a");
All of this is well-documented on reference websites. But if you didn't know of these functions, you could easily d...