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What's up with Java's “%n” in printf?
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%n is portable across platforms
\n is not.
See the formatting string syntax in the reference documentation:
'n' line separator The result is the
platform-specific line separator
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Java: int array initializes with nonzero elements
...zeroing of allocated array.
This bug is placed in Oracle bug tracker (bug id 7196857). Unfortunately, I did not wait for any clarifications from Oracle about the following points. As I see, this bug is OS-specific: it absolutely reproducible on 64-bit Linux and Mac, but, as I see from comments, it ...
jQuery delete all table rows except first
...on, queries using :gt() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use $("your-pure-css-selector").slice(index) instead. I would recommend using $("#mytable > tr").slice(1).remove();
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I need to get all the cookies from the browser
...u;last_visit=1225445171794
To simplify the access, you have to parse the string and unescape all entries:
var getCookies = function(){
var pairs = document.cookie.split(";");
var cookies = {};
for (var i=0; i<pairs.length; i++){
var pair = pairs[i].split("=");
cookies[(pair[0]+''...
How to add icon inside EditText view in Android ?
I want to add a "search" icon to appear inside an EditText in the left edge? such as search box in Facebook Android app?
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How to print to console using swift playground?
...le displaying the output in the Assistant Editor. Rather than wrapping the string in println(), simply output the string. For example:
for index in 1...5 {
"The number is \(index)"
}
Will write (5 times) in the playground area. This will allow you to display it in the Assistant Editor (via th...
Disable developer mode extensions pop up in Chrome
...ck Developer Mode
Scroll down the list of disabled extensions and note the ID(s) of the extensions you want to enable.
Click Start > Run, type gpedit.msc and hit enter.
Click User Configuration > Administrative Templates > Google Chrome > Extensions
Double click Configure extension insta...
SQL update query using joins
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ON im.sku = gm.sku
JOIN Manufacturer_Master mm
ON gm.ManufacturerID = mm.ManufacturerID
WHERE im.mf_item_number like 'STA%' AND
gm.manufacturerID = 34
To make it clear... The UPDATE clause can refer to an table alias specified in the FROM clause. So im in this case is valid
Generic ...
How do I catch an Ajax query post error?
...le success and error handlers.
Example:
$.post('status.ajax.php', {deviceId: id})
.done( function(msg) { ... } )
.fail( function(xhr, textStatus, errorThrown) {
alert(xhr.responseText);
});
Prior to jQuery 1.8, the function done was called success and fail was called error.
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Django Rest Framework: Dynamically return subset of fields
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You can override the serializer __init__ method and set the fields attribute dynamically, based on the query params. You can access the request object throughout the context, passed to the serializer.
Here is a copy&paste from Django...