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Scroll back to the top of scrollable div
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Also, note that scollIntoView only works if you call it on the element which is to be scrolled. In other words, don't call it on the element you want to scroll to, call it on the element you want to scroll.
– Chris
Jun 15 at 14:41
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Difference between Role and GrantedAuthority in Spring Security
...tion of the hasAuthority() method in SecurityExpressionRoot - which simply calls hasRole()). With Spring Security 4, the treatment of roles is more consistent and code that deals with "roles" (like the RoleVoter, the hasRole expression etc.) always adds the ROLE_ prefix for you. So hasAuthority('ROL...
Android ListView not refreshing after notifyDataSetChanged
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adapter.notifyDataSetChanged();
}
what you just have updated before calling notifyDataSetChanged() is not the adapter's field private List<Item> items; but the identically declared field of the fragment. The adapter still stores a reference to list of items you passed when you created t...
How to save an image to localStorage and display it on the next page?
So, basically, I need to upload a single image, save it to localStorage, then display it on the next page.
7 Answers
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What do you call the -> operator in Ruby?
...("Methods, Procs, Lambdas, and Closures"), a lambda defined using -> is called lambda literal.
succ = ->(x){ x+1 }
succ.call(2)
The code is equivalent to the following one.
succ = lambda { |x| x + 1 }
succ.call(2)
Informally, I have heard it being called stabby lambda or stabby literal...
What is the (best) way to manage permissions for Docker shared volumes?
...the host and editing it there, create a new container to do that job. Lets call it some/graphitetools. Lets also create the appropriate user/group, just like the some/graphite image.
FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of ot...
How to create a jQuery function (a new jQuery method or plugin)?
... @candide at which point $('my_div').myfunction(); will be call
– Nikhil G
Jun 25 '15 at 6:10
2
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How do I disable a Pylint warning?
...d of having to remember all those code numbers. E.g.:
# pylint: disable=locally-disabled, multiple-statements, fixme, line-too-long
This style is more instructive than cryptic error codes, and also more practical since newer versions of Pylint only output the symbolic name, not the error code.
T...
How to call C from Swift?
Is there a way to call C routines from Swift?
6 Answers
6
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How to generate random SHA1 hash to use as ID in node.js?
...ing passwords.
Technique 1 (generate a salt and hash on separate function calls)
const salt = bcrypt.genSaltSync(saltRounds);
const hash = bcrypt.hashSync(myPlaintextPassword, salt);
Technique 2 (auto-gen a salt and hash):
const hash = bcrypt.hashSync(myPlaintextPassword, saltRounds);
For more...