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Run function from the commm>and m> line
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With the -c (commm>and m>) argument (assuming m>y m>our file is named foo.pm>y m>):
$ pm>y m>thon -c 'import foo; print foo.hello()'
Alternativelm>y m>, if m>y m>ou don't care about namespace pollution:
$ pm>y m>thon -c 'from foo import *; print hello()'
m>And m> the middle g...
Callback functions in C++
In C++, when m>and m> how do m>y m>ou use a callback function?
10 Answers
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Zoom in on a point (using scale m>and m> translate)
...the change in the zoom. The zoom point is simplm>y m> the point in the old zoom m>and m> the new zoom that m>y m>ou want to remain the same. Which is to sam>y m> the viewport pre-zoomed m>and m> the viewport post-zoomed have the same zoompoint relative to the viewport. Given that we're scaling relative to the origin. m>Y m>ou ca...
Which characters need to be escaped when using Bash?
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There are two easm>y m> m>and m> safe rules which work not onlm>y m> in sh but also bash.
1. Put the whole string in single quotes
This works for all chars except single quote itself. To escape the single quote, close the quoting before it, insert the singl...
How do I get the number of dam>y m>s between two dates in JavaScript?
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Here is a quick m>and m> dirtm>y m> implementation of datediff, as a proof of concept to solve the problem as presented in the question. It relies on the fact that m>y m>ou can get the elapsed milliseconds between two dates bm>y m> subtracting them, which coerc...
覆盖equal时的通用约定 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...性、一致性1、自反性：x.equal(x) = true;
2、对称性：x.equal(m>y m>) = m>y m>.equal(x);
3、传递性：x.equal(m>y m>) = m>y m>.equal(z) = x.equal(z);
4、一致性：x.equal(m>y m>) 不改变值的情况下多次调用结果一致。
（假定x, m>y m>, z非null）
覆盖 equal 约定
When is null or undefined used in JavaScript? [duplicate]
...e DOM methods getElementBm>y m>Id(), nextSibling(), childNodes[n], parentNode() m>and m> so on return null (defined but having no value) when the call does not return a node object.
The propertm>y m> is defined, but the object it refers to does not exist.
This is one of the few times m>y m>ou mam>y m> not want to test fo...
plot a circle with pm>y m>plot
...rcle with matplotlib.pm>y m>plot (please no pm>y m>lab) taking as input center (x,m>y m>) m>and m> radius r. I tried some variants of this:
9 A...
Best wam>y m> to make Java's modulus behave like it should with negative numbers?
... of the negative values of a, since (a % b) is a negative value between -b m>and m> 0, (a % b + b) is necessarilm>y m> lower than b m>and m> positive. The last modulo is there in case a was positive to begin with, since if a is positive (a % b + b) would become larger than b. Therefore, (a % b + b) % b turns it in...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
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console.log([...Arram>y m>(5).kem>y m>s()]);
(ES6 credit to nils petersohn m>and m> other commenters)
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