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How do I use ROW_NUMBER()?
...ROM myTable
to get the count.
And for the second question, the primary key of the row is what should be used to identify a particular row. Don't try and use the row number for that.
If you returned Row_Number() in your main query,
SELECT ROW_NUMBER() OVER (Order by Id) AS RowNumber, Field1,...
split string only on first instance of specified character
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Use capturing parentheses:
"good_luck_buddy".split(/_(.+)/)[1]
"luck_buddy"
They are defined as
If separator contains capturing parentheses, matched results are
returned in the array.
So in this case we want to split at _.+ (i.e. split separator being...
Delete all rows in an HTML table
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Keep the <th> row in a <thead> and the other rows in a <tbody> then replace the <tbody> with a new, empty one.
i.e.
var new_tbody = document.createElement('tbody');
populate_with_new_rows(new_tbody);...
How can I check if a scrollbar is visible?
Is it possible to check the overflow:auto of a div?
19 Answers
19
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Grepping a huge file (80GB) any way to speed it up?
...ightygigsfile.sql
It will also be faster if you copy your file to RAM disk.
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Generic type conversion FROM string
.... These properties simply have a name and a value. Ideally, what I would like is to be able to add typed properties, so that the "value" returned is always of the type that I want it to be.
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Difference between toFixed() and toPrecision()?
...Ref at w3schools: toFixed and toPrecision
EDIT:
I learned a while back that w3schools isn't exactly the best source, but I forgot about this answer until I saw kzh's, uh, "enthusiastic" comment. Here are additional refs from Mozilla Doc Center for toFixed() and for toPrecision(). Fortunately f...
How to get the previous URL in JavaScript?
Is there any way to get the previous URL in JavaScript? Something like this:
7 Answers
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Show a number to two decimal places
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How do I break out of a loop in Perl?
I'm trying to use a break statement in a for loop, but since I'm also using strict subs in my Perl code, I'm getting an error saying:
...