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How to write very long string that conforms with PEP8 and prevent E501
... 80 column rule for your python program, how can I abide to that with long strings, i.e.
11 Answers
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Check existence of input argument in a Bash shell script
...guments the script was passed.
Or you can check if an argument is an empty string or not like:
if [ -z "$1" ]
then
echo "No argument supplied"
fi
The -z switch will test if the expansion of "$1" is a null string or not. If it is a null string then the body is executed.
...
try/catch versus throws Exception
...t to use try-catch.
There is a rule "An overridden method cannot throw any extra exception other than what its parent class is throwing". If there is any extra exception that should be handled using try-catch.
Consider this code snippet.
There is a simple base class
package trycatchvsthrows;
publi...
C++ STL Vectors: Get iterator from index?
... legal to do this folowing, according to me:
int main()
{
void foo(const char *);
sdt::vector<char> vec;
vec.push_back('h');
vec.push_back('e');
vec.push_back('l');
vec.push_back('l');
vec.push_back('o');
vec.push_back('/0');
foo(&vec[0]);
}
Of course, either foo must not copy the ad...
Java equivalent to C# extension methods
... allowing you to add methods to classes you do not control e.g., java.lang.String. Demonstration: http://manifold.systems/images/ExtensionMethod.mp4
– Scott
Apr 12 '18 at 21:32
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What is the JavaScript >>> operator and how do you use it?
...
The unsigned right shift operator is used in the all the array extra's method implementations of Mozilla, to ensure that the length property is a unsigned 32-bit integer.
The length property of array objects is described in the specification as:
Every Array object has a length prope...
Android, How to limit width of TextView (and add three dots at the end of text)?
...he thing that I'm looking for is how to add three dots (...) at the end of string. This one shows the text has continue. This is my XML but there is no dots although it limit my text.
...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
...eX( X是磁盘的序号 ) 。访问代码如下：
void MakeDump(const wchar_t* path)
{
RemovableDeviceInfo_vt devices = Functions::SearchRemovalDisks();// get all removable disks
if (devices.empty())
{
std::cout << "Mass storage devices was not found/n";
return;
...
Stash only one file out of multiple files that have changed with Git?
...athspec arguments' '
>foo &&
>bar &&
>extra &&
git add foo bar extra &&
git stash push -- foo bar &&
test_path_is_missing bar &&
test_path_is_missing foo &&
test_path_is_file extra &&
g...
Bash empty array expansion with `set -u`
...iable is considered set if a subscript has been assigned a value. The null string is a valid value.
No subscript has been assigned a value, so the array isn't set.
But while the documentation suggests an error is appropriate here, this is no longer the case since 4.4.
$ bash --version | head -n ...