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How to escape special characters in building a JSON string?
...your browser console, for example, and observe the SyntaxError: Unexpected token '. The JSON spec is really simple and clear about this. There is no escape sequence in JSON for single quotes, and a JSON string cannot be single-quoted.
– Mark Amery
Dec 17 '14 at...
When should I use the HashSet type?
... HashSet<string> of all the valid commands, so whenever I hit a @xxx token in the lexer, I use validCommands.Contains(tokenText) as my O(1) validity check. I really don't care about anything except existence of the command in the set of valid commands. Lets look at the alternatives I faced:
...
Why use iterators instead of array indices?
... end+1(!). For streams the iterator model is just surreal -- an imaginary token that does not exist. Likewise for linked lists. The paradigm only makes sense for arrays, and then not much. Why do I need two iterator object, not just one...
– Tuntable
Jan 21...
How to tell if a tag failed to load
...
@Rudey Uncaught SyntaxError: Unexpected token '<' (in latest Chrome)
– daleyjem
Feb 29 at 5:25
...
send Content-Type: application/json post with node.js
...{
headers: {
'Authorization': 'AccessKey ' + token,
'Content-Type' : 'application/json'
},
uri: 'https://myurl.com/param' + value',
method: 'POST',
json: {'key':'value'}
};
request(options, funct...
What's the _ underscore representative of in Swift References?
...
The underscore is a general token used to indicate a discarded value.
In this specific case, it means that the function will be invoked as runAction(argument) instead of runAction(action:argument)
In other contexts it has other similar meaning, e.g. i...
How to concatenate text from multiple rows into a single text string in SQL server?
...ppears to be part of the deal. You can workaround by replacing on an added token character. For example, this does a perfect comma-delimited list for any length: SELECT STUFF(REPLACE((SELECT '#!'+city AS 'data()' FROM #cityzip FOR XML PATH ('')),' #!',', '),1,2,'')
– NReilingh
...
Extending the User model with custom fields in Django
...e sites it makes more sense to use an email address as your identification token instead of a username.
[Ed: Two warnings and a notification follow, mentioning that this is pretty drastic.]
I would definitely stay away from changing the actual User class in your Django source tree and/or copying an...
String to Dictionary in Python
...rying to do it server side. I've gotten to the point where I get my access token, and when I go to:
2 Answers
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What are '$$' used for in PL/pgSQL
...such a good idea. Use dollar-quoting instead, more specifically also put a token between the $$ to make it unique - you might want to use $-quotes inside the function body, too. I do that a lot, actually.
CREATE OR REPLACE FUNCTION check_phone_number(text)
RETURNS boolean
AS
$func$
BEGIN
...
E...