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How do I get the first n characters of a string without checking the size or going out of bounds?
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358
Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
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Android; Check if file exists without creating a new one
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answered Apr 26 '13 at 13:52
Maikel BollemeijerMaikel Bollemeijer
6,14555 gold badges2323 silver badges4646 bronze badges
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PostgreSQL create table if not exists
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edited Aug 20 at 11:13
answered Sep 15 '11 at 22:34
Er...
What is a non-capturing group in regular expressions?
...ow.com/"
Group 1: "http"
Group 2: "stackoverflow.com"
Group 3: "/"
Match "https://stackoverflow.com/questions/tagged/regex"
Group 1: "https"
Group 2: "stackoverflow.com"
Group 3: "/questions/tagged/regex"
But I don't care about the protocol -- I just want the host an...
UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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Disable ActiveRecord for Rails 4
...cations:
1. Remove database adapter gems from your Gemfile (mysql2, sqlite3, etc.)
2. Change your config/application.rb
Remove require 'rails/all line and require frameworks (among those available in your rails version, the list varies, do not just copy) you want to use, for example:
require "ac...
[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
...: #ffffff;
--tertiary: #0088cc;
--quaternary: #e45735;
--highlight: #ffff4d;
--success: #009900;
}
}
/* then deal with dark scheme */
@media (prefers-color-scheme: dark) {
:root {
--primary: #222...
Rails 3 migrations: Adding reference column?
If I create a new rails 3 migration with (for example)
10 Answers
10
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Clean way to launch the web browser from shell script?
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3
Isn't it bad to use which to detect binaries?
– msanford
Jan 14 '14 at 16:09
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