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How do you use the ellipsis slicing syntax in Python?

...shape(2,2,2,2) Now, you have a 4-dimensional matrix of order 2x2x2x2. To select all first elements in the 4th dimension, you can use the ellipsis notation >>> a[..., 0].flatten() array([ 0, 2, 4, 6, 8, 10, 12, 14]) which is equivalent to >>> a[:,:,:,0].flatten() array([ 0...
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How can I set focus on an element in an HTML form using JavaScript?

...ead use the name or even a class. In that case you would use document.querySelector("[name='myText']") or document.querySelector(".myText") to get a reference to the input element. – Chris Love Nov 23 '15 at 19:18 ...
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How to prevent IFRAME from redirecting top-level window

... The user will not know why this confirmation appears, and will probably select a random response. I don't recommend using it. There are other solutions- the sandbox. – oriadam Dec 6 '15 at 23:10 ...
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理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...当系统内存不足的时候,out_of_memory() 被触发,然后调用 select_bad_process() 选择一个 “bad” 进程杀掉,如何判断和选择一个 “bad” 进程呢,总不能随机选吧?挑选的过程由 oom_badness() 决定,挑选的算法和想法都很简单很朴实:最...
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Performance of Find() vs. FirstOrDefault() [duplicate]

...Ef__AnonymousType0<string>> source = Enumerable.ToList(Enumerable.Select(Enumerable.Range(0, 1000000), i => { var local_0 = new { Name = Guid.NewGuid().ToString() }; return local_0; })); source.Insert(999000, new { Name = diana })...
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How to discard local changes in an SVN checkout?

...ore git commit $ git add -p <interactively select (and edit) the chunks you want to share> $ git add ${the_list_of_files_not_in_yet_in_svn_you_want_to_add} $ git commit Using the commit, prepare a patch that you want to share. For this purpose, you could also use ...
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Eclipse “Error: Could not find or load main class”

...to your desktop eclipse installation? If that is the case, you should just select Project > Clean. Then rebuild your project. Worked like a charm for me. share | improve this answer | ...
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JavaScript file upload size validation

...."); } else if (!input.files[0]) { bodyAppend("p", "Please select a file before clicking 'Load'"); } else { file = input.files[0]; bodyAppend("p", "File " + file.name + " is " + file.size + " bytes in size"); } } function bodyAppend(tagName, innerHTML) { ...
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Find JavaScript function definition in Chrome

... I couldn't find "function definition" using the selected answer. I have searched on Google and couldn't find any help. (Using Chrome Version 41.0.2272.118 m ) – Web_Developer Apr 13 '15 at 7:17 ...
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Draw multi-line text to Canvas

... You can get the metrics for a selected character, e.g. font.measure("Y") – GregD Apr 10 at 18:41 add a comment  ...