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How to generate random SHA1 hash to use as ID in node.js?
I am using this line to generate a sha1 id for node.js:
4 Answers
4
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In SQL, what's the difference between count(column) and count(*)?
...s not
[edit] added this code so that people can run it
create table #bla(id int,id2 int)
insert #bla values(null,null)
insert #bla values(1,null)
insert #bla values(null,1)
insert #bla values(1,null)
insert #bla values(null,1)
insert #bla values(1,null)
insert #bla values(null,null)
select count(...
Is it possible to use a div as content for Twitter's Popover
... attribute. I was wondering if there was anyway to put a <div> inside the popover. Potentially, I would like to use php and mysql in there, but if i could get a div to work i think i can figure out the rest. I tried setting data-content to a div ID, but it didnt work.
...
How can I change an element's text without changing its child elements?
... to be the first thing in the element, then given e.g. this HTML:
<div id="your_div">
**text to change**
<p>
text that should not change
</p>
<p>
text that should not change
</p>
</div>
You could do this:
var your_div = document.ge...
Add & delete view from Layout
...
@schwiz how can we reset the view id's in this case.My problem is even after my activity finishes whenever the next view gets added the view id gets incremented.I want the view id to default to 1 when i get back to this activity again.
–...
How do you create a random string that's suitable for a session ID in PostgreSQL?
...] with chars[ceil(61 * random())]
– PreciousBodilyFluids
Mar 15 '13 at 4:08
random() gets called length times (like in...
How to execute a raw update sql with dynamic binding in rails
... I would trace the Rails code for a normal update to see what it's doing aside from the actual query.
Using prepared queries can save you a small amount of time in the database, but unless you're doing this a million times in a row, you'd probably be better off just building the update with normal ...
How to do parallel programming in Python?
...0)
This will spawn processes that can do generic work for you. Since we did not pass processes, it will spawn one process for each CPU core on your machine. Each CPU core can execute one process simultaneously.
If you want to map a list to a single function you would do this:
args = [A, B]
resul...
Spring MVC: How to return image in @ResponseBody?
...lowing could be a method to return a user's profile picture from MongoDB GridFS:
@RequestMapping(value = "user/avatar/{userId}", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<InputStreamResource> downloadUserAvatarImage(@PathVariable Long userId) {
GridFSDBFile gridFsFil...
Generate class from database table
... select
replace(col.name, ' ', '_') ColumnName,
column_id ColumnId,
case typ.name
when 'bigint' then 'long'
when 'binary' then 'byte[]'
when 'bit' then 'bool'
when 'char' then 'string'
when 'date' then 'DateTime...