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Passing Data between View Controllers
...ssing data forward to the next View Controller
The following is an example based on the video. The idea is to pass a string from the text field in the First View Controller to the label in the Second View Controller.
Create the storyboard layout in the Interface Builder. To make the segue, you just...
SQLAlchemy: What's the difference between flush() and commit()?
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A Session object is basically an ongoing transaction of changes to a database (update, insert, delete). These operations aren't persisted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any uncommitted changes within are lost).
The sess...
TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
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[size=15.008px]ScaleTextSize:Scale the text size of the specified label based on the length of the text. Parameters: minTextSize , maxTextSize (float) - minimum and maximum text size in scaled pixels, scaleStep (float) - scaling factor.
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lsof survival guide [closed]
...ions to a specific host, use @host
lsof -i@192.168.1.5
Show connections based on the host and the port using @host:port
lsof -i@192.168.1.5:22
grepping for LISTEN shows what ports your system is waiting for connections on:
lsof -i| grep LISTEN
Show what a given user has open using -u:
ls...
Comparing Haskell's Snap and Yesod web frameworks
...ll.
Snap does have sessions and authentication, interfaces to several databases, and nice form handling (here and here) using digestive-functors that includes prepackaged support for arbitrarily nested dynamically sizable lists. These are just some of the growing ecosystem of pluggable snaplets. ...
Any good boolean expression simplifiers out there? [closed]
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You can try Wolfram Alpha as in this example based on your input:
http://www.wolframalpha.com/input/?i=((A%20OR%20B)%20AND%20(NOT%20B%20AND%20C)%20OR%20C)&t=crmtb01&f=rc
share
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Load data from txt with pandas
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Based on the latest changes in pandas, you can use, read_csv , read_table is deprecated:
import pandas as pd
pd.read_csv("file.txt", sep = "\t")
sh...
Should CSS always preceed Javascript?
... before CSS will have a performance penalty on 15% of users globally; YMMV based on your site's specific audience. (And remember that number is shrinking.)
On mobile browsers, it's a little harder to get definitive numbers simply due to how heterogeneous the mobile browser and OS landscape is. Si...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
... those looking for the complete steps: If you are looking to create a OWIN based, IIS hosted web API, these steps should get you there:
File -> New -> Project
In the dialogue, Installed -> templates -> Other Project types -> Visual Studio Solutions -> Blank Solution targeting .NE...
git + LaTeX workflow
...itive\n";
else
dire=$(dirname $PWD/$1);
based=$(git rev-parse --show-toplevel);
git show HEAD~$2:$(echo $dire| sed 's!'$(echo $based)'/!!')/$1 > $1_diff.tmp;
latexdiff $1 $1_diff.tmp > $1_diff.tex;
pdflatex $1_diff.te...