大约有 3,270 项符合查询结果（耗时：0.0186秒） [XML]
Why would one omit the close tag?
...; however solves just a trickle of the common headers already sent causes (raw output, BOM, notices, etc.) and their follow-up problems.
PHP actually contains some magic to eat up single linebreaks after the ?> closing token. Albeit that has historic issues, and leaves newcomers still susceptibl...
How to generate the “create table” sql statement for an existing table in postgreSQL
...
This works, but if the table name has any uppercase letters in it then you have to wrap the table name with both single and double quotes: pg_dump mydb -t '"TableName"' --schema-only - otherwise pg_dump won't recognise the table name.
– Josh
...
Why hasn't functional programming taken over yet?
...ch for the sorts of problems we face. Our problems are all about taking in raw information -- strings and metadata -- and transforming them into different strings and metadata. In situations where mutations occur, like someone is typing in the IDE, the problem space inherently lends itself to functi...
Setup RSpec to test a gem (not Rails)
...res instead of camel case. Otherwise Bundler creates files with upper case letters (Bundler 1.7.4)
– Malte
Mar 9 '15 at 11:09
...
What are the minimum margins most printers can handle?
... side". Very often HP used 1/3, 1/2 inch or more (like "24 24 588 768" for Letter format). I remember having hacked HP PPDs and tuned them down to "6 6 606 786" (1/12 inch) before the physical boundaries of the device kicked in and enforced a real clipping of the page image.
Now, PCL and other lang...
How do I find Waldo with Mathematica?
...pick out the pixels in the image with a sufficiently high correlation and draw white circle around them to emphasize them using Dilation
pos = Dilation[ColorNegate[Binarize[corr, .12]], DiskMatrix[30]];
I had to play around a little with the level. If the level is too high, too many false positiv...
How can I parse a CSV string with JavaScript, which contains comma in data?
...tive regular expressions syntax (expressed using Python's handy r'''...''' raw-multi-line-string syntax).
First here is a regular expression which validates that a CVS string meets the above requirements:
Regular expression to validate a "CSV string":
re_valid = r"""
# Validate a CSV string having s...
How to sign an android apk file
... name of your State or Province?
[Unknown]: Maharashtra
What is the two-letter country code for this unit?
[Unknown]: IN
Is CN=MySignedApp Demo, OU=Information Technology, O=MySignedApp Demo, L=Mumbai, ST=Maharashtra, C=IN corr
ect?
[no]: y
Generating 2,048 bit RSA key pair and self-signed...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...rJS context will run a $digest loop. That means that every time we write a letter in an input, the loop will run checking every $watch in this page.
$apply()
If you call $apply when an event is fired, it will go through the angular-context, but if you don’t call it, it will run outside it. It is ...
Why should hash functions use a prime number modulus?
...hosen and adding them all up. For example given a string, multiplying each letter value with the prime number and then adding those all up will give you its hash value.
A better question would be, why exactly the number 31?
...