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Batch Renaming of Files in a Directory
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@ShashankSawant It is indeed a formatting operator. See String Formatting Operations for documentation and sample usage.
– DzinX
Apr 7 '14 at 8:50
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how to read System environment variable in Spring applicationContext
...alue from my.properties.prefix.myProperty will be bound to this variable
String myProperty;
// and this will even throw a startup exception if the property is not found
@javax.validation.constraints.NotNull
String myRequiredProperty;
//getters
}
@Component
public class MyOtherBean {
@...
Xcode 6 iPhone Simulator Application Support location
...bugging. After application didFinishLaunchingWithOptions. #if DEBUG NSString *appName = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"]; NSString *aliasPath = [NSString stringWithFormat:@"XCodePaths/%@", appName]; remove([aliasPath UTF8String]); [[NSFileM...
parsing JSONP $http.jsonp() response in angular.js
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UPDATE: since Angular 1.6
You can no longer use the JSON_CALLBACK string as a placeholder for
specifying where the callback parameter value should go
You must now define the callback like so:
$http.jsonp('some/trusted/url', {jsonpCallbackParam: 'callback'})
Change/access/declare param...
Javascript sort array by two fields
...ion(a, b){
for(var x in _args){
var ax = a[_args[x].substring(1)];
var bx = b[_args[x].substring(1)];
var cx;
ax = typeof ax == "string" ? ax.toLowerCase() : ax / 1;
bx = typeof bx == "string" ? bx.toLowerCase() : bx / 1;
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Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods
...fellowshipOfTheRing);
assertThat(sauron).isNotIn(fellowshipOfTheRing);
// String specific assertions
assertThat(frodo.getName()).startsWith("Fro").endsWith("do")
.isEqualToIgnoringCase("frodo");
// collection specific assertions
assertThat(fellowshipOfTheRing).hasSize(9)...
How do I get the key at a specific index from a Dictionary in Swift?
...tialize a new array with the keys or values property:
let airportCodes = [String](airports.keys) // airportCodes is ["TYO", "LHR"]
let airportNames = [String](airports.values) // airportNames is ["Tokyo", "London Heathrow"]
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Rename specific column(s) in pandas
...umns' (the axis argument was introduced in v0.21.
Index.str.replace() for string/regex based replacement.
If you need to rename ALL columns at once,
DataFrame.set_axis() method with axis=1. Pass a list-like sequence. Options are available for in-place modification as well.
rename with axis=1
d...
Most pythonic way to delete a file which may not exist
... os.remove(filename)
If filename is a pathlib.Path object instead of a string, we can call its .unlink() method instead of using os.remove(). In my experience, Path objects are more useful than strings for filesystem manipulation.
Since everything in this answer is exclusive to Python 3, it pr...
New self vs. new static
...get_class($b->create1()), get_class($b->create2()));
The results:
string(1) "B"
string(1) "B"
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