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Delete first character of a string in Javascript
...o you don't even need to call .length()...
TL;DR : Remove first character from the string:
str = str.substring(1);
...yes it is that simple...
Removing some particular character(s):
As @Shaded suggested, just loop this while first character of your string is the "unwanted" character...
var yourStr...
Read and write a String from text file
I need to read and write data to/from a text file, but I haven't been able to figure out how.
21 Answers
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Editing legend (text) labels in ggplot
... the ggplot2 package.
An example with your data:
# transforming the data from wide to long
library(reshape2)
dfm <- melt(df, id = "TY")
# creating a scatterplot
ggplot(data = dfm, aes(x = TY, y = value, color = variable)) +
geom_point(size=5) +
labs(title = "Temperatures\n", x = "TY [°C]...
Remove an item from a dictionary when its key is unknown
What is the best way to remove an item from a dictionary by value, i.e. when the item's key is unknown? Here's a simple approach:
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Difference between size_t and std::size_t
... unsigned int, which can lead to
programming errors,[3][4] when moving
from 32 to 64-bit architecture, for
example.
According to the 1999 ISO C
standard (C99), size_t is an unsigned
integer type of at least 16 bits.
And the rest you can read from this page at wikipedia.
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Insert spaces between words on a camel-cased token [duplicate]
... This one actually works: (?<!^)([A-Z][a-z]|(?<=[a-z])[A-Z]) From: codeproject.com/Articles/108996/…
– Vincent
Jan 31 '19 at 19:04
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Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
......
You should check the logs on the heroku server heroku logs run that from the console and it will tell you the exact error.
When you push to heroku you need to configure the environment.rb file with the heroku subdomain:
config.action_mailer.default_url_options = { :host => 'yourapp.herok...
What is a “first chance exception”?
...ystem will start unwinding the stack. Note that if an exception is thrown from a finally block...
– supercat
Apr 29 '13 at 14:47
18
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Using %f with strftime() in Python to get microseconds
...strftime accepts a timetuple that does not carry microsecond information.
from datetime import datetime
datetime.now().strftime("%H:%M:%S.%f")
Should do the trick!
share
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improve this answer
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How do I decode a string with escaped unicode?
...'m having trouble searching for it. How can I decode a string with unicode from http\u00253A\u00252F\u00252Fexample.com to http://example.com with JavaScript? I tried unescape , decodeURI , and decodeURIComponent so I guess the only thing left is string replace.
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