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Python try…except comma vs 'as' in except
...le.
In Python 2.6+, use the as syntax, since it is far less ambiguous and forward compatible with Python 3.x.
In Python 2.5 and earlier, use the comma version, since as isn't supported.
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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
...004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particular example '%02d' means to print an integer (d) taking up at least 2 characters (2) and left-padding with zeros instead of spaces (0).
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remove_if equivalent for std::map
...ements from map based on particular condition. How do I do it using STL algorithms?
13 Answers
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How to get position of a certain element in strings vector, to use it as an index in ints vector?
I am trying to get the index of an element in a vector of strings , to use it as an index in another vector of int type, is this possible ?
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What is the best way to get the count/length/size of an iterator?
Is there a "computationally" quick way to get the count of an iterator?
9 Answers
9
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What is the purpose of Android's tag in XML layouts?
...t;merge /> tag, but I still don't understand how it's useful. Is it a sort-of replacement of the <Frame /> tag, or is it used like so:
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Converting an object to a string
... of the variables in the object to a JSON string. Most modern browsers support this method natively, but for those that don't, you can include a JS version:
var obj = {
name: 'myObj'
};
JSON.stringify(obj);
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Javascript reduce() on Object
...es(add).reduce((t, {value}) => t + value, 0)
console.log(total) // 6
or simply:
const add = {
a: 1,
b: 2,
c: 3
}
const total = Object.values(add).reduce((t, n) => t + n)
console.log(total) // 6
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What's the status of multicore programming in Haskell?
What's the status of multicore programming in Haskell? What projects, tools, and libraries are available now? What experience reports have there been?
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What is javax.inject.Named annotation supposed to be used for?
...not clear what the javax.inject.Named annotation is supposed to be used for. The Javadoc does not explain the the idea behind it.
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