大约有 47,000 项符合查询结果(耗时:0.0610秒) [XML]

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How to check if element is visible after scrolling?

I'm loading elements via AJAX. Some of them are only visible if you scroll down the page. Is there any way I can know if an element is now in the visible part of the page? ...
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How to create a hex dump of file containing only the hex characters without spaces in bash?

How do I create an unmodified hex dump of a binary file in Linux using bash? The od and hexdump commands both insert spaces in the dump and this is not ideal. ...
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In Scala how do I remove duplicates from a list?

Suppose I have 8 Answers 8 ...
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How can I request the vibrate permission?

How can I request the vibrate permission in my Android application? 2 Answers 2 ...
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Difference between 'self' and 'total' in Chrome CPU Profile of JS

What is the difference between the 'self' and 'total' columns in the Chrome CPU profiling of JS code? 2 Answers ...
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What is the `data-target` attribute in Bootstrap 3?

Can you tell me what is the system or behavior behind the data-target attribute used by Bootstrap 3? 2 Answers ...
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Are there any downsides to enabling git rerere?

I've read various things about git's rerere feature, and I'm considering enabling it. But I haven't seen anyone mention any possible problems that could arise while using it. I have to assume there is a downside, or it would probably be enabled by default. So is there any downside to enabling rerere...
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Input and output numpy arrays to h5py

I have a Python code whose output is a sized matrix, whose entries are all of the type float . If I save it with the extension .dat the file size is of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I ...
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Are Roslyn SyntaxNodes reused?

I've been taking a look to Roslyn CTP and, while it solves a similar problem to the Expression tree API , both are immutable but Roslyn does so in a quite different way: ...
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When splitting an empty string in Python, why does split() return an empty list while split('\n') re

I am using split('\n') to get lines in one string, and found that ''.split() returns an empty list, [] , while ''.split('\n') returns [''] . Is there any specific reason for such a difference? ...