大约有 47,000 项符合查询结果（耗时：0.0598秒） [XML]
Best way to check if a URL is valid
I want to use PHP to check, if string stored in $myoutput variable contains a valid link syntax or is it just a normal text. The function or solution, that I'm looking for, should recognize all links formats including the ones with GET parameters.
...
Convert string to binary in python
I am in need of a way to get the binary representation of a string in python. e.g.
8 Answers
...
Java: when to use static methods
...atic imports. Easier, shorter.
Adding methods: you really wanted the class String to have a removeSpecialChars() instance method, but it's not there (and it shouldn't, since your project's special characters may be different from the other project's), and you can't add it (since Java is somewhat san...
Securely storing environment variables in GAE with app.yaml
...m google.appengine.ext import ndb
class Settings(ndb.Model):
name = ndb.StringProperty()
value = ndb.StringProperty()
@staticmethod
def get(name):
NOT_SET_VALUE = "NOT SET"
retval = Settings.query(Settings.name == name).get()
if not retval:
retval = Settings()
retva...
throw Error('msg') vs throw new Error('msg')
...!(this instanceof Array)) { return new Array(arguments); }. (But note that String(x) and new String(x) are very different, and likewise for Number and Boolean.)
That said, in case of an error, it's not even required to throw an Error object... throw 'Bad things happened'; will work, tooYou can even...
When to use in vs ref vs out
... difference, an out parameter needs not be initialized.
Example for out:
string a, b;
person.GetBothNames(out a, out b);
where GetBothNames is a method to retrieve two values atomically, the method won't change behavior whatever a and b are. If the call goes to a server in Hawaii, copying the in...
What's the “big idea” behind compojure routes?
...ate to a proper response map; Compojure provides sane default handling for strings (as seen above) and a number of other object types; see the compojure.response/render multimethod for details (the code is entirely self-documenting here).
Let's try using defroutes now:
(defroutes example-routes
...
UILabel with text of two different colors
I want to display a string like this in a UILabel :
20 Answers
20
...
Get filename and path from URI from mediastore
...
Below API 19 use this code to get File Path from URI:
public String getRealPathFromURI(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA };
cursor = context.getContentResolver().query(contentUri, proj, null, null...
What are all the differences between src and data-src attributes?
...r" to this question; src must be included. You use data- attributes to add extra data for a scripting language (like JavaScript) to leverage.
– Tieson T.
Mar 10 '13 at 7:53
ad...