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TypeScript and field initializers
... address?: string,
age?: number
}) {
if (fields) Object.assign(this, fields);
}
}
or do it manually (bit more safe):
if (fields) {
this.name = fields.name || this.name;
this.address = fields.address || this.address;
this.age = ...
How does one parse XML files? [closed]
Is there a simple method of parsing XML files in C#? If so, what?
12 Answers
12
...
angularjs: ng-src equivalent for background-image:url(…)
...rc is a native directive, so it seems you want a similar directive that modifies your div's background-image style.
You could write your own directive that does exactly what you want. For example
app.directive('backImg', function(){
return function(scope, element, attrs){
var url = a...
How to get UTF-8 working in Java webapps?
...n {
encoding = config.getInitParameter("requestEncoding");
if (encoding == null) encoding = "UTF-8";
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain next)
throws IOException, ServletException {
// Respect the client-sp...
How do I change the data type for a column in MySQL?
.../dev.mysql.com/doc/refman/5.1/en/alter-table.html
ALTER TABLE tablename MODIFY columnname INTEGER;
This will change the datatype of given column
Depending on how many columns you wish to modify it might be best to generate a script, or use some kind of mysql client GUI
...
How many database indexes is too many?
...
It depends on the operations that occur on the table.
If there's lots of SELECTs and very few changes, index all you like.... these will (potentially) speed the SELECT statements up.
If the table is heavily hit by UPDATEs, INSERTs + DELETEs ... these will be very slow with lots...
bool operator ++ and --
...
It comes from the history of using integer values as booleans.
If x is an int, but I am using it as a boolean as per if(x)... then incrementing will mean that whatever its truth value before the operation, it will have a truth-value of true after it (barring overflow).
However, it's impo...
Remove a symlink to a directory
...u need to tell it to delete a file, not delete a directory. I believe the difference between rm and rmdir exists because of differences in the way the C library treats each.
At any rate, the first should work, while the second should complain about foo being a directory.
If it doesn't work as abov...
Remove an element from a Bash array
...ippo
$ array=( "${array[@]/$delete}" ) #Quotes when working with strings
If need to delete more than one element:
...
$ delete=(pluto pippo)
for del in ${delete[@]}
do
array=("${array[@]/$del}") #Quotes when working with strings
done
Caveat
This technique actually removes prefixes matching ...
SortedList, SortedDictionary and Dictionary
...nts will be sorted. Not so with Dictionary<T,V>.
MSDN addresses the difference between SortedList<T,V> and SortedDictionary<T,V>:
The SortedDictionary(TKey, TValue) generic class is a binary search
tree with O(log n) retrieval, where n is the number of elements in
the dic...