大约有 3,090 项符合查询结果（耗时：0.0158秒） [XML]
How do I get java logging output to appear on a single line?
...String lineSeparator = "\n";
/**
* Format the given LogRecord.
* @param record the log record to be formatted.
* @return a formatted log record
*/
public synchronized String format(LogRecord record) {
StringBuilder sb = new StringBuilder();
// Minimize memory allocations h...
Converting Secret Key into a String and Vice Versa
...
public static SecretKey generateAESKey(int keysize)
throws InvalidParameterException {
try {
if (Cipher.getMaxAllowedKeyLength("AES") < keysize) {
// this may be an issue if unlimited crypto is not installed
throw new InvalidParameterException("Key siz...
Convert JS Object to form data
... this but there is no usage example. the expected format of the ignoreList param would be pretty helpful.
– jpro
Jun 9 at 19:43
add a comment
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...
Rails detect if request was AJAX
..._request, only: [:action, :action_2]
def action
@model = Model.find(params[:id])
end
def action_2
# load resource(s)
end
private
def require_xhr_request
redirect_to(root_url) unless request.xhr?
end
end
...
Validate uniqueness of multiple columns
...
Just wanted to add that you can pass multiple scope params in case you need to validate uniqueness on more than 2 fields. I.e. :scope => [:friend_id, :group_id]
– Dave Rapin
May 2 '11 at 16:36
...
How to remove a key from Hash and get the remaining hash in Ruby/Rails?
... { a: true, b: false, c: nil}
#
# This is useful for limiting a set of parameters to everything but a few known toggles:
# @person.update(params[:person].except(:admin))
def except(*keys)
dup.except!(*keys)
end
# Replaces the hash without the given keys.
# hash = { a: true, b:...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...ysqli->error); // or $mysqli->error_list
}
else if ( !$stmt->bind_param('s', $_POST['username']) ) {
yourErrorHandler($stmt->error); // or $stmt->error_list
}
else if ( !$stmt->execute() ) {
yourErrorHandler($stmt->error); // or $stmt->error_list
}
else {
$result ...
How to skip over an element in .map()?
...solution:
/**
* Filter-map. Like map, but skips undefined values.
*
* @param callback
*/
function fmap(callback) {
return this.reduce((accum, ...args) => {
let x = callback(...args);
if(x !== undefined) {
accum.push(x);
}
return accum;
}, [...
MVC3 DropDownListFor - a simple example?
...ad to use an IEnumerable<Contrib> to satisfy the DropDownListFor parameter requirements. Now, however, how is MVC FW supposed to map the value that is selected on this drop-down back into the simple string property on my view model?
...
Tree data structure in C#
...d Action<T>( T obj ) . There are also versions from 0 to 4 different parameters. There's also an analogous delegate for functions called Func<>.
– Benny Jobigan
Feb 6 '10 at 23:45
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