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Pragma in define macro
Is there some way to embed pragma statement in macro with other statements?
4 Answers
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using lodash .groupBy. how to add your own keys for grouped output?
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You can do it like this in Lodash 4.x
var data = [{
"name": "jim",
"color": "blue",
"age": "22"
}, {
"name": "Sam",
"color": "blue",
"age": "33"
}, {
"name": "eddie",
"color": "green",
"age": "77"
}];
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Getting number of elements in an iterator in Python
Is there an efficient way to know how many elements are in an iterator in Python, in general, without iterating through each and counting?
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Weighted random numbers
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There is a straightforward algorithm for picking an item at random, where items have individual weights:
1) calculate the sum of all the weights
2) pick a random number that is 0 or greater and is less than the sum of the weights
3) go through the items ...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
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An RSA "Public Key" consists of two numbers:
the modulus (e.g. a 2,048 bit number)
the exponent (usually 65,537)
Using your RSA public key as an example, the two numbers are:
Modulus: 297,056,429,939,040,947,991,047,334,197,581,225,628,107,021,573,849,359,042,679,698,093,131,908,015,712,695,6...
How to parse/read a YAML file into a Python object? [duplicate]
...:
pip install PyYAML
And the Python code looks like this:
import yaml
with open('tree.yaml') as f:
# use safe_load instead load
dataMap = yaml.safe_load(f)
The variable dataMap now contains a dictionary with the tree data. If you print dataMap using PrettyPrint, you will get something ...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
Consider the following example on a 32 bit x86 machine:
11 Answers
11
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Saving an Object (Data persistence)
...pickle module in the standard library.
Here's an elementary application of it to your example:
import pickle
class Company(object):
def __init__(self, name, value):
self.name = name
self.value = value
with open('company_data.pkl', 'wb') as output:
company1 = Company('banan...
What's the difference between process.cwd() vs __dirname?
...follow
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edited May 22 '15 at 12:23
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
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Chrome sendrequest error: TypeError: Converting circular structure to JSON
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It means that the object you pass in the request (I guess it is pagedoc) has a circular reference, something like:
var a = {};
a.b = a;
JSON.stringify cannot convert structures like this.
N.B.: This would be the case with...