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endsWith in JavaScript
...is.length - s.length) == s;
}
using lastIndexOf just creates unnecessary CPU loops if there is no match.
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list.clear() vs list = new ArrayList(); [duplicate]
...me of the list will be in both versions, and
your heap / GC parameters and CPU.
These make it hard to predict which will be better. But my intuition is that the difference will not be that great.
Two bits of advice on optimization:
Don't waste time trying to optimize this ... unless the applic...
Python: List vs Dict for look up table
... than both list and set for large data sets, running python 2.7.3 on an i7 CPU on linux:
python -mtimeit -s 'd=range(10**7)' '5*10**6 in d'
10 loops, best of 3: 64.2 msec per loop
python -mtimeit -s 'd=dict.fromkeys(range(10**7))' '5*10**6 in d'
10000000 loops, best of 3: 0.0759 usec per loop
py...
CSS selector for “foo that contains bar”? [duplicate]
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@Mészáros Lajos CSS does not depend on SCSS, they have no obligation to do that. I'd rather see CSS become robust enough to render LESS/SCSS obsolete actually, regardless of which syntax is chosen.
– Jos...
Quick and easy file dialog in Python?
...t hangs. I'm still able to type in the terminal, but nothing happens. Also cpu goes to 0% for my program. Any advice?
– Diana
Jul 2 '13 at 20:00
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Divide a number by 3 without using *, /, +, -, % operators
...s you know how the +, -, * and / operators are actually implemented on the CPU: simple bitwise operations.
– craig65535
Jul 27 '12 at 21:55
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What does “yield break;” do in C#?
... thread calling a "schedule" or "sleep" function to give up control of the CPU. Just like a thread, the IEnumerable<T> method regains controls at the point immediately afterward, with all local variables having the same values as they had before control was given up.
yield break is like a th...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...算机系统方面的世界顶尖专家JeffDean共同主导，用16000个CPU Core的并行计算平台训练一种称为“深度神经网络”（DNN，Deep Neural Networks）的机器学习模型（内部共有10亿个节点。这一网络自然是不能跟人类的神经网络相提并论的。...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...算机系统方面的世界顶尖专家JeffDean共同主导，用16000个CPU Core的并行计算平台训练一种称为“深度神经网络”（DNN，Deep Neural Networks）的机器学习模型（内部共有10亿个节点。这一网络自然是不能跟人类的神经网络相提并论的。...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...算机系统方面的世界顶尖专家JeffDean共同主导，用16000个CPU Core的并行计算平台训练一种称为“深度神经网络”（DNN，Deep Neural Networks）的机器学习模型（内部共有10亿个节点。这一网络自然是不能跟人类的神经网络相提并论的。...