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How can I count text lines inside an DOM element? Can I?
...es.length;
It can return the height of each line, and more. See the full array of things it can do by adding this to your script, then looking in your console log.
console.log("");
console.log("message_lines");
console.log(".............................................");
console.dir(message_line...
Random row selection in Pandas dataframe
...m import sample
# given data frame df
# create random index
rindex = np.array(sample(xrange(len(df)), 10))
# get 10 random rows from df
dfr = df.ix[rindex]
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How to find difference between two Joda-Time DateTimes in minutes
...ce just isn't cool. Imagine having to perform a time difference on a large array of date/time objects.
– AndroidDev
Jun 16 '18 at 7:20
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sho...
What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...', price: 1 }
];
If we wanted to get the price of every fruit in a single array, in ES5 we could do:
fruits.map(function(fruit) {
return fruit.price;
}); // [2, 3, 1]
In ES6 with the new Arrow Functions, we can make this more concise:
fruits.map(fruit => fruit.price); // [2, 3, 1]
Addition...
Mongoose's find method with $or condition does not work properly
...'},
{ nickname: 'somethang'}
]).exec();
console.log(body);
}
/* Gives an array of the searched query!
returns [] if not found */
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Return two and more values from a method
...
You can achieve this returning an array too, like
def sumdiff(x, y)
[x+y, x-y]
end
which seems functionally equivalent to
def sumdiff(x, y)
return x+y, x-y
end
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How to generate a Dockerfile from an image?
...
It gets me : json: cannot unmarshal array into Go value of type types.ContainerJSON
– Mohsen
Jan 9 '18 at 12:47
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Get current stack trace in Ruby without raising an exception
...ller:
# /tmp/caller.rb
def foo
puts caller # Kernel#caller returns an array of strings
end
def bar
foo
end
def baz
bar
end
baz
Output:
caller.rb:8:in `bar'
caller.rb:12:in `baz'
caller.rb:15:in `<main>'
...
What is sys.maxint in Python 3?
... One downside of this approach is that float inf can ruin the data type of arrays if you are trying to apply jit compilation with numba or Cython or similar. You may need a Python list of all integer types so that a jit compiler can automatically convert it to the appropriate c type, for example. Th...
Send message to specific client with socket.io and node.js
...
Thanks it was helpful. I just had to use an array instead: io.of('/mynamespace').sockets[socketID].emit(...) (don't know if it's because I'm using a namespace)
– Adrien Schuler
Jun 25 '12 at 15:53
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