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Tool for generating railroad diagram used on json.org [closed]
...ilroad diagrams on json.org which are a graphical representation of the BNF language. I haven't found any tools that can produce results as eloquently.
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Adding a legend to PyPlot in Matplotlib in the simplest manner possible
Please consider the graphing script below:
7 Answers
7
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How to use if statements in underscore.js templates?
...t;span class="date"><%= date %></span>
<% } %>
Remember that in underscore.js templates if and for are just standard javascript syntax wrapped in <% %> tags.
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Is nested function a good approach when required by only one function? [closed]
Let's say that a function A is required only by function B , should A be defined inside B?
12 Answers
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Is returning by rvalue reference more efficient?
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Beta_ab&&
Beta::toAB() const {
return move(Beta_ab(1, 1));
}
This returns a dangling reference, just like with the lvalue reference case. After the function returns, the temporary object will get destructed. You...
Is there a query language for JSON?
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Sure, how about:
JsonPath.
Json Query
They all seem to be a bit work in progress, but work to some degree. They are also similar to XPath and XQuery conceptually; even though XML and JSON have different conceptual models (hierarchic...
What is the difference between char array and char pointer in C?
I am trying to understand pointers in C but I am currently confused with the following:
8 Answers
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Getting a list of associative array keys
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You can use: Object.keys(obj)
Example:
var dictionary = {
"cats": [1, 2, 37, 38, 40, 32, 33, 35, 39, 36],
"dogs": [4, 5, 6, 3, 2]
};
// Get the keys
var keys = Object.keys(dictionary);
console.log(keys);
See reference below...
Selecting a row of pandas series/dataframe by integer index
...curious as to why df[2] is not supported, while df.ix[2] and df[2:3] both work.
6 Answers
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What's the difference between echo, print, and print_r in PHP?
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print and echo are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take multiple parameters, although such u...