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I See a Lot of `<open></close>` Tag Sets That Contain NO Data, Doesn't This Negate the Tag?


I See a Lot of `<open></close>` Tag Sets That Contain NO Data, Doesn't This Negate the Tag?

By : Akg1483
Date : October 18 2020, 08:10 AM
I think the issue was by ths following , Tags provide the directions or recipes for the visual content that one sees on the Web, they can be stylished by CSS, targeted, modified, injected via Javascript so they can have a utility even if they are empty, it depends on the context.
As you did not provide any particular context, here is an example of text and colored shapes displayed with only empty tags:
code :
span{
  display:block;
  width:50px;
  height:50px;
  background-color:yellow;
  border-radius: 100%;
}

span:first-child{
  margin-top:20px;
  background-color:red;
}

span:last-of-type{
  background-color:green;
}

span:first-child::after{
  content: "Dare to say to this cute traffic light that he is pointless ";
  position:absolute;
  top:0;
}
span:first-child::before{
  position:absolute;  
  background-color:black;
  height:150px;
  width:50px;
  z-index:-1;
  content:"";
}

span:last-of-type::before{
  position:absolute;  
  background-color:black;
  height:150px;
  width:20px;
  z-index:-1;
  left:22px;
  top:150px;
  content:"";
}
<span></span>
<span></span>
<span></span>


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How to negate sets of surrogate pairs?

How to negate sets of surrogate pairs?


By : LUKE Bei
Date : March 29 2020, 07:55 AM
like below fixes the issue I've been looking at matching unicode characters outside the 0x0FFFF range using JavaScript surrogate pairs. , Allow every other sequence outside the range:
code :
/[\u0000-\u0060\u007B-\uD83B\uD83D-\uDBFF\uE000-FFFF]|\uD83C[\uDC00-\uDC03\uDC05-\uDFFF]/g
/(?![a-z\uDC00-\uDFFF]|\uD83C\uDC04)./g
How can I negate the %in% operator (or return the complement of two sets)?

How can I negate the %in% operator (or return the complement of two sets)?


By : Kannan RBK
Date : March 29 2020, 07:55 AM
hope this fix your issue I have two lists or similar, and I want to get the items in big_list that are not in little_list.
code :
setdiff(big_list, little_list)
 #[1] 1 3 5
 big_list[!big_list %in% little_list]
 #[1] 1 3 5
Open Workbook, transcribe data and close workbook... Workbooks.Open doesnt seem to work

Open Workbook, transcribe data and close workbook... Workbooks.Open doesnt seem to work


By : Jason
Date : March 29 2020, 07:55 AM
will help you Your SourceWbObject should be declared as WorkBook not WorkBooks. Then replacing ThisWorkBook with SourceWbObject should do this.
Does PHP exit() also close open result sets?

Does PHP exit() also close open result sets?


By : Cat
Date : March 29 2020, 07:55 AM
wish helps you I like to close SQL result sets after I'm done using them with either sqlsrv_cancel($result) or mysqli_free_result($result) depending on the type of connection I'm using. , By the looks of it: yes.
Why do we need to create, open and close db connections to retrieve multiple result sets but not if retrieving one set?

Why do we need to create, open and close db connections to retrieve multiple result sets but not if retrieving one set?


By : rokoroku
Date : March 29 2020, 07:55 AM
may help you . Opening and close database connections are expensive operations in terms of time and resources. At the same time if the connection is left open for long time it might cause a memory leak or security risk.
So the recommended approach is to open database connection only when needed and close as soon as the purpose of opening it is served.
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