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Detect the Enter key in a text input field
...es (.keyCode and .which) are Deprecated.
const node = document.getElementsByClassName("input")[0];
node.addEventListener("keyup", function(event) {
if (event.key === "Enter") {
// Do work
}
});
Modern style, with lambda and destructuring
node.addEventListener('keyup', ({key}) =>...
Java, Simplified check if int array contains int
Basically my mate has been saying that I could make my code shorter by using a different way of checking if an int array contains an int, although he won't tell me what it is :P.
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Add new column with foreign key constraint in one command
...the DBMS. Some DBMS allow you to combine ALTER table operations separated by commas. For example...
Informix syntax:
ALTER TABLE one
ADD two_id INTEGER,
ADD CONSTRAINT FOREIGN KEY(two_id) REFERENCES two(id);
The syntax for IBM DB2 LUW is similar, repeating the keyword ADD but (if I read...
Best GUI designer for eclipse? [closed]
...uilder Pro is a great GUI Designer for eclipse and is now offered for free by google.
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edited Jun 10 '12 at 23:23
Andrew Marsha...
How do I calculate square root in Python?
...
What you're seeing is integer division. To get floating point division by default,
from __future__ import division
Or, you could convert 1 or 2 of 1/2 into a floating point value.
sqrt = x**(1.0/2)
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The command rbenv install is missing
...
The install command is not embedded into rbenv, it comes from the ruby-build plugin. You can install it using the command:
git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
On Mac OS X you can install it through homebrew:
brew install ruby-build
On Deb...
How can I use a search engine to search for special characters? [closed]
... special characters that I recenetly found:
amp-what?
You can even search by object name, like "arrow", "chess", etc...
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How to get current date in jquery?
...complex one, because it must deal with months & days being represented by numbers less than 10 (meaning the strings will have one char instead of two). See this jsfiddle for comparison.
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How to dismiss keyboard iOS programmatically when pressing return
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//Hide keyBoard by touching background in view
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[[self view] endEditing:YES];
}
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...nce rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
# See rsyslogd(8) for more details
SYSLOGD_OPTIONS="-d -n"
如果你想测试Rsyslog是否工作的话，可以通过系统内建的logger命令发消息；如果你想测试Rsyslog性能如何的话，可以考...