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- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
1、UUID 背后的理念是，由于空间非常大（2^128，比宇宙中原子的估计数量还要多），随机选择两个 UUID 来标识事物时几乎不可能产生碰撞。如果您知道要连接的服务/特性，那么将它们编码到应用程序中是有意义的。如果您正在开...
Smooth scrolling when clicking an anchor link
...w/
If your target element does not have an ID, and you're linking to it by its name, use this:
$('a[href^="#"]').click(function () {
$('html, body').animate({
scrollTop: $('[name="' + $.attr(this, 'href').substr(1) + '"]').offset().top
}, 500);
return false;
});
For incr...
JavaScript to scroll long page to DIV
...it, I wish a div on another part of the page to be visible in the window by scrolling into view.
16 Answers
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How can I show hidden files (starting with period) in NERDTree?
...gle hidden files in the NERDTree explorer window.
To enable this behavior by default, add this line to your .vimrc file:
let NERDTreeShowHidden=1
For more detail, access the NERDTree help file :help NERD_tree.txt and search for "hidden".
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PowerShell script not accepting $ (dollar) sign
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Escape it by using backtick (`) as an escape character for the dollar sign ($).
Also, try to enclose the statement in single-quotes instead of the double-quotes you are using now.
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Can I force pip to reinstall the current version?
... a package that is already up-to-date. I see how to force a reinstallation by first uninstalling (with pip uninstall ) and then installing, but is there a way to simply force an "update" to a nominally current version in a single step?
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How to force maven update?
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if it's caused by the .lastupdated file, generated from the last unsuccessful dependency downloading, this method will not work, we need something like Rober Reiz's answer
– Junchen Liu
May 4 '16 at 1...
How can I view an old version of a file with Git?
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Doing this by date looks like this:
git show HEAD@{2013-02-25}:./fileInCurrentDirectory.txt
Note that HEAD@{2013-02-25} means "where HEAD was on 2013-02-25" in this repository (using the reflog), not "the last commit before 2013-02-2...
AngularJS access scope from outside js function
... @MarcM. I think it has to do with Angular's scope recreation. By the time you're using the change function, the previous scope the global var was pointing to may no longer exist (due to the recreation).
– dk123
Dec 14 '13 at 3:43
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Java: Getting a substring from a string starting after a particular character
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Finally something really handy, didn't know about this method. I hate to hassle with substring + indexof + 1 - 2 +3 whatsoever. This is much cleaner :)
– BAERUS
Feb 6 '18 at 8:05
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