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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...tring s) throws NumberFormatException
Explanation for comparison:
In order to save memory, two instances of the
wrapper objects , will always be == when their
primitive values are the same:
Boolean
Byte
Character from \u0000 to \u007f (7f is 127 in decimal)
Short and Integer ...
How to build query string with Javascript
...ues from the form ..
it's not perfect but it fits my needs.
function form_params( form )
{
var params = new Array()
var length = form.elements.length
for( var i = 0; i < length; i++ )
{
element = form.elements[i]
if(element.tagName == 'TEXTAREA' )
{
...
How to log something in Rails in an independent log file?
...t like the usual Rails logger:
class User < ActiveRecord::Base
def my_logger
@@my_logger ||= Logger.new("#{Rails.root}/log/my.log")
end
def before_save
my_logger.info("Creating user with name #{self.name}")
end
end
Here I used a class attribute to memoize the logger. This way ...
Optional Parameters in Go?
...amp;Foobar{}
// ... (write initializations with default values)...
for _, op := range options{
err := op(fb)
if err != nil {
return nil, err
}
}
return fb, nil
}
where each option is a function which mutates the Foobar. Then provide convenient ways for your user to use or...
How can I show hidden files (starting with period) in NERDTree?
...reeShowHidden=1
For more detail, access the NERDTree help file :help NERD_tree.txt and search for "hidden".
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Why aren't variable-length arrays part of the C++ standard?
...++ compilers.)
Variable-length arrays in C99 were basically a misstep. In order to support VLAs, C99 had to make the following concessions to common sense:
sizeof x is no longer always a compile-time constant; the compiler must sometimes generate code to evaluate a sizeof-expression at runtime.
A...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
...en for the programmer to make use of it!
– underscore_d
Mar 23 '18 at 14:25
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How to put a delay on AngularJS instant search?
...e understandable answer than accepted :) Thanks!
– OZ_
Sep 16 '13 at 23:22
3
Isn't there an issue...
What should I use Android AccountManager for?
...ms that I need to implement a SyncAdapter and a ContentProvider as well in order to reach my goals. Correct me If I am wrong :)
– dackyD
Jan 25 '12 at 8:19
...
ADB Android Device Unauthorized
...uthorized on ADB for whatever reason.
1. Check if authorized:
<ANDROID_SDK_HOME>\platform-tools>adb devices
List of devices attached
4df798d76f98cf6d unauthorized
2. Revoke USB Debugging on phone
If the device is shown as unauthorized, go to the developer options on the phone an...