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What is the difference between Type and Class?
...primitives are classes (or more exactly structs).
– dalle
Jan 22 '09 at 7:10
4
@dalle: agreed, th...
Javascript object Vs JSON
...ort these, you should include json2.js.
If you're using jQuery, you can call jQuery.parseJSON(), which will use JSON.parse() under the hood if it's supported and will otherwise fallback to a custom implementation to parse the input.
...
What's the difference between equal?, eql?, ===, and ==?
...nd the difference between these four methods. I know by default that == calls the method equal? which returns true when both operands refer to exactly the same object.
...
What is the purpose of Rank2Types?
I am not really proficient in Haskell, so this might be a very easy question.
6 Answers
...
How can I use jQuery to make an input readonly?
...
Note that readonly does not apply to all inputs. [HTML attribute: readonly](See developer.mozilla.org/en-US/docs/Web/HTML/Attributes/readonly). I attempted to create a select that would allow the options to be shown, but not an other option to be selected. This ...
How do I parse a URL query parameters, in Javascript? [duplicate]
...;
return result;
}
This function can parse even URLs like
var url = "?foo%20e[]=a%20a&foo+e[%5Bx%5D]=b&foo e[]=c";
// {"foo e": ["a a", "c", "[x]":"b"]}
var obj = getJsonFromUrl(url)["foo e"];
for(var key in obj) { // Array.forEach would skip string keys here
console.log(key,":",ob...
Can anyone explain what JSONP is, in layman terms? [duplicate]
...nly used to
bypass the cross-domain policies in web browsers. (You are not allowed to make AJAX requests to a web page perceived to be on a different server by the browser.)
JSON and JSONP behave differently on the client and the server. JSONP requests are not dispatched using the XMLHTTPRequest an...
adding multiple entries to a HashMap at once in one statement
...yValuePairs[i+1]);
}
}
And then to use it
Map<String, String> Foo=QuickHash(
"a", "1",
"b", "2"
);
This yields {a:1, b:2}
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Display JSON as HTML [closed]
...
and what if the string is all in one line? how does he make it nicely formatted like that?
– geowa4
May 19 '09 at 17:15
2
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How to succinctly write a formula with many variables from a data frame?
...
There is a special identifier that one can use in a formula to mean all the variables, it is the . identifier.
y <- c(1,4,6)
d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2))
mod <- lm(y ~ ., data = d)
You can also do things like this, to use all variables but...