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Use of “this” keyword in formal parameters for static methods in C#
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This is an extension method. See here for an explanation.
Extension methods allow developers to add new methods to the public
contract of an existing CLR type, without having to sub-class it or
recompile the original type. Extension Methods help blend th...
PHP: Move associative array element to beginning of array
...rray['one']] + $myArray;
Array keys are unique, so it would be impossible for it to exist in two locations.
See further at the doc on Array Operators:
The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand ar...
Add horizontal scrollbar to html table
...erflow-x: auto;
white-space: nowrap;
}
Nice and clean. No superfluous formatting.
Here are more involved examples with scrolling table captions from a page on my website.
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程序员羊皮卷下载版.pdf - 文档下载 - 清泛网 - 专注C/C++及内核技术
...工说谎成本提高
80 解聘成本增加导致试用期压力陡增
81 无固定期合同也不是什么保险箱
83 HR 部门应该做的两件事
83 出具相关证明
83 解释公司政策
84 远离无赖就是远离风险
84 小K 跳槽事件回放
85 三个视角的分析
87 防微...
How to sort a list/tuple of lists/tuples by the element at a given index?
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@Cemre as for the second example, sort here is a method of List object of Python, which receives a lambda function as its key parameter. You may name it as tup, or t, or whatever you like and it'll still work. tup here specifies index ...
The required anti-forgery form field “__RequestVerificationToken” is not present Error in user Regis
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You have [ValidateAntiForgeryToken] attribute before your action. You also should add @Html.AntiForgeryToken() in your form.
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How to create a new java.io.File in memory?
...omments of Andreas’ answer) could also be mentioned, because if you cant for some reason write to the hard-drive, then that could be a way around it.
– FableBlaze
Jan 17 at 12:19
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Is there a unique Android device ID?
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Settings.Secure#ANDROID_ID returns the Android ID as an unique for each user 64-bit hex string.
import android.provider.Settings.Secure;
private String android_id = Secure.getString(getContext().getContentResolver(),
Secure.ANDROID...
Find region from within an EC2 instance
...sentially because that IP is an APIPA). Also there is no way to get this information directly from inside the instance without connecting to a metadata source. This assumes that the 169.254.169.254 API is available, and your script should handle network failures accordingly. ec2-metadata is just a w...
How to Import .bson file format on mongodb
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mongorestore -d db_name -c collection_name /path/file.bson
Incase only for a single collection.Try this:
mongorestore --drop -d db_name -c collection_name /path/file.bson
For restoring the complete folder exported by mongodump:
mongorestore -d db_name /path/
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