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Generating an MD5 checksum of a file
...ay that is more complex, but memory efficient:
import hashlib
def hash_bytestr_iter(bytesiter, hasher, ashexstr=False):
for block in bytesiter:
hasher.update(block)
return hasher.hexdigest() if ashexstr else hasher.digest()
def file_as_blockiter(afile, blocksize=65536):
with a...
Rounded table corners CSS only
...
Seems to work fine in FF and Chrome (haven't tested any others) with separate borders: http://jsfiddle.net/7veZQ/3/
Edit: Here's a relatively clean implementation of your sketch:
table {
border-collapse:separate;
border:solid black 1px;
border-radi...
Automatically start forever (node) on system restart
...s easy to use.
How to
To start editing run the following replacing the "testuser" with your desired runtime user for the node process. If you choose a different user other than yourself, you will have to run this with sudo.
$ crontab -u testuser -e
If you have never done this before, it will a...
Can I set variables to undefined or pass undefined as an argument?
...tion statement lists, the unpassed arguments are set to undefined. You can test for that with eg.:
function dosomething(arg1, arg2) {
if (arg2===undefined)
arg2= DEFAULT_VALUE_FOR_ARG2;
...
}
With this method you can't tell the difference between dosomething(1) and dosomething(1, unde...
Can Powershell Run Commands in Parallel?
...fine what each job does
$ScriptBlock = {
param($pipelinePassIn)
Test-Path "\\$pipelinePassIn\c`$\Something"
Start-Sleep 60
}
# Execute the jobs in parallel
Start-Job $ScriptBlock -ArgumentList $_
}
Get-Job
# Wait for it all to complete
While (Get-Job -State "Running")
{
Sta...
Prefer composition over inheritance?
.... So the goose is more or less cooked once you derive from TypeA.
My acid test for the above is:
Does TypeB want to expose the complete interface (all public methods no less) of TypeA such that TypeB can be used where TypeA is expected? Indicates Inheritance.
e.g. A Cessna biplane will expos...
How do I get monitor resolution in Python?
...
Works great on Ubuntu. Tested on Ubuntu 16.04.
– Dhruv Reshamwala
Sep 20 '16 at 6:21
3
...
How to add a “readonly” attribute to an ?
...not be "true" or "false". While I think the code above will actually work (tested in Chrome with jQuery 1.8.1), it can lead to later confusion for the inexperienced. Also, according to the jQuery docs the value should be number or string, not a boolean. api.jquery.com/attr/#attr2
...
git rebase without changing commit timestamps
...="%at %s" $GIT_COMMIT); grep -m 1 "$__log" ../../hashlog | cut -d" " -f1); test -n "$__date" && export GIT_COMMITTER_DATE=$__date || cat'
If something goes wrong, just checkout git reflog or all the refs/original/ refs.
Furthormore, you can do the similar thing to the author's timestamp.
...
Webfonts or Locally loaded fonts?
... stevesouders.com/blog/2009/10/13/font-face-and-performance. I'll run some tests and post performance differences tonight. Thanks for the great insight.
– darcher
Mar 1 '14 at 17:41
...