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How to create custom easing function with Core Animation?
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// this should be a function that takes a time value between
// 0.0 and 1.0 (where 0.0 is the beginning of the animation
// and 1.0 is the end) and returns a scale factor where 0.0
// would produce the starting value and 1.0 would produce the
// ending value
typedef double (^KeyframeParametric...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...命令可以登录主节点使用
db.adminCommand({replSetStepDown : 1})
如果杀不掉可以使用强制开关
db.adminCommand({replSetStepDown : 1, force : true})
或者使用 rs.stepDown(120)也可以达到同样的效果，中间的数字指不能在停止服务这段时间成...
Best way to merge two maps and sum the values of same key?
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15 Answers
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Active
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bash/fish command to print absolute path to a file
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591
Use realpath
$ realpath example.txt
/home/username/example.txt
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use Winmerge inside of Git to file diff
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113
Update June 2015, 6 years later:
As detailed in "git mergetool winmerge", a simple git config...
Passing parameters to JavaScript files
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14 Answers
14
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Checking images for similarity with OpenCV
...lue (maybe a percentage) that indicates how similar these images are? E.g. 100% would be returned if the same image was passed twice, 0% would be returned if the images were totally different.
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What are the most common font-sizes for H1-H6 tags [closed]
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215
It would depend on the browser's default stylesheet. You can view an (unofficial) table of CSS2...
how get yesterday and tomorrow datetime in c#
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128
You can find this info right in the API reference.
var today = DateTime.Today;
var tomorrow =...
VBA读写UTF8文本文件，VBA生成UTF-8无BOM格式的文件 - 更多技术 - 清泛网 -...
...Sub Test() Dim sht As Worksheet, scr, content As String, i, arr_acsp_xz(1 To 8), arr_acsp_xz_data(1 To 8), arr_wemzs(1 To 1 VBA读写UTF8文本文件
Sub Test()
Dim sht As Worksheet, scr, content As String, i, arr_acsp_xz(1 To 8), arr_acsp_xz_data(1 To 8), arr_wemzs(1 To 13), arr_wemzs_...