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How to show the “Are you sure you want to navigate away from this page?” when changes committed?
... consistently by all browsers. It should be a function reference and not a string (as the original answer stated) but that will work in older browsers because the check for most of them appears to be whether anything is assigned to onbeforeunload (including a function that returns null).
You set wi...
How to horizontally center a
...hat does the actual centering.
If you are targeting Internet Explorer 8 (and later), it might be better to have this instead:
#inner {
display: table;
margin: 0 auto;
}
It will make the inner element center horizontally and it works without setting a specific width.
Working example here:
...
Functional style of Java 8's Optional.ifPresent and if-not-Present?
...b")).ifPresent(this::print);
map() - transform value if present
opt.map(String::trim).filter(t -> t.length() > 1).ifPresent(this::print);
orElse()/orElseGet() - turning empty Optional to default T
int len = opt.map(String::length).orElse(-1);
int len = opt.
map(String::length).
o...
How do you test functions and closures for equality?
...hashable object. Like:
var handler:Handler = Handler(callback: { (message:String) in
//handler body
}))
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Is there a way to ignore a single FindBugs warning?
...ment. The value can be a bug category, kind or pattern.
*
*/
String[] value() default {};
/**
* Optional documentation of the reason why the warning is suppressed
*/
String justification() default "";
}
Source: https://sourceforge.net/p/findbugs/feature-requests/29...
Add params to given URL in Python
..." Add GET params to provided URL being aware of existing.
:param url: string of target URL
:param params: dict containing requested params to be added
:return: string with updated URL
>> url = 'http://stackoverflow.com/test?answers=true'
>> new_params = {'answers': ...
What's the difference between => , ()=>, and Unit=>
... @nish1013 A "literal" is a value (the integer 1, the character 'a', the string "abc", or the function () => println("here"), for some examples). It can be passed as argument, stored in variables, etc. A "block of code" is a syntactical delimitation of statements -- it isn't a value, it can't b...
How to reliably open a file in the same directory as a Python script
...tively or if the script is read from standard input), path[0] is the empty string, which directs Python to search modules in the current directory first. Notice that the script directory is inserted before the entries inserted as a result of PYTHONPATH.
sys.path[0] is what you are looking for.
...
Serializing to JSON in jQuery [duplicate]
...
JSON-js - JSON in JavaScript.
To convert an object to a string, use JSON.stringify:
var json_text = JSON.stringify(your_object, null, 2);
To convert a JSON string to object, use JSON.parse:
var your_object = JSON.parse(json_text);
It was recently recommended by John Resig:
...
Iterating over all the keys of a map
... slice of the map-keys.
// Return keys of the given map
func Keys(m map[string]interface{}) (keys []string) {
for k := range m {
keys = append(keys, k)
}
return keys
}
// use `Keys` func
func main() {
m := map[string]interface{}{
"foo": 1,
"bar": true,
...