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Ruby on Rails: How do I add placeholder text to a f.text_field?
How can I add placeholder text to my f.text_field fields so that the text comes pre-written by default, and when a user click inside the fields, the text goes away - allowing the user to type in the new text?
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How can I switch my git repository to a particular commit
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To create a new branch (locally):
With the commit hash (or part of it)
git checkout -b new_branch 6e559cb
or to go back 4 commits from HEAD
git checkout -b new_branch HEAD~4
Once your new branch is created (locally), you might want to replicat...
What are the correct link options to use std::thread in GCC under linux?
...and:
g++ your_prog.cpp -o your_output_binary -lpthread -std=gnu++11
You can also try C++11 instead of gnu++11. Hope this works.
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Get position of UIView in respect to its superview's superview
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You can use this:
Objective-C
CGRect frame = [firstView convertRect:buttons.frame fromView:secondView];
Swift
let frame = firstView.convert(buttons.frame, from:secondView)
Documentation reference:
https://developer.ap...
Passport.js - Error: failed to serialize user into session
...s, you could set the session to false
app.post('/login', passport.authenticate('local', {
successRedirect: '/accessed',
failureRedirect: '/access',
session: false
}));
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Pandas get topmost n records within each group
...ll/5510 was just merged in; will be in 0.13, new method to do exactly this called cumcount (number the records in each group)
– Jeff
Nov 19 '13 at 11:10
1
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Parse string to date with moment.js
...s. var date = moment("2014-02-27T10:00:00").format('DD-MM-YYYY'); var dateCalendarPart = moment(date).format('YYYY/MM/DD'); alert(date); alert(dateCalendarPart); Gives an invalid date error?????
– Andrew Day
Jun 15 '16 at 11:17
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Ruby: Merging variables in to a string
... is the trigger for Ruby to use its built-in placeholder substitution. You cannot replace them with single quotes (') or the string will be kept as is.
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How does a Linux/Unix Bash script know its own PID?
I have a script in Bash called Script.sh , and it needs to know its own PID (i.e. I need to get PID inside the Script.sh )
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How can I manipulate the strip text of facet_grid plots?
I'm wondering how I can manipulate the size of strip text in facetted plots. My question
is similar to a question on plot titles , but I'm specifically concerned with
manipulating not the plot title but the text that appears in facet titles (strip_h).
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