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What does the 'L' in front a string mean in C++?
... characters (wchar_t) instead of narrow characters (char).
It's a just a string of a different kind of character, not necessarily a Unicode string.
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Remove duplicates from an array of objects in JavaScript
...ueArray = things.thing.filter((thing, index) => {
const _thing = JSON.stringify(thing);
return index === things.thing.findIndex(obj => {
return JSON.stringify(obj) === _thing;
});
});
Stackblitz Example
sha...
What is the purpose of a stack? Why do we need it?
... +1 for a very detailed explanation, and +100 (if I could) for extra DETAILED comparison to other systems and language :)
– Jan Carlo Viray
Oct 24 '11 at 12:53
4
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Eclipse, regular expression search and replace
In eclipse, is it possible to use the matched search string as part of the replace string when performing a regular expression search and replace?
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Create Pandas DataFrame from a string
...der to test some functionality I would like to create a DataFrame from a string. Let's say my test data looks like:
5 Ans...
offsetting an html anchor to adjust for fixed header [duplicate]
...h resolves to an element on the
* page, scroll to it.
* @param {String} href
* @return {Boolean} - Was the href an anchor.
*/
scrollIfAnchor: function(href, pushToHistory) {
var match, rect, anchorOffset;
if(!this.ANCHOR_REGEX.test(href)) {
return false;...
Getting an element from a Set
...you have no other option but to use the iterator:
public static void main(String[] args) {
Set<Foo> set = new HashSet<Foo>();
set.add(new Foo("Hello"));
for (Iterator<Foo> it = set.iterator(); it.hasNext(); ) {
Foo f = it.next();
if (f.equals(new Foo(...
HTML5 Email Validation
... type=email page of the www.w3.org site notes that an email address is any string which matches the following regular expression:
/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
Use the required attribute and a pattern attribute to require the value to match the regex...
How can I get dict from sqlite query?
...
Even using the sqlite3.Row class-- you still can't use string formatting in the form of:
print "%(id)i - %(name)s: %(value)s" % row
In order to get past this, I use a helper function that takes the row and converts to a dictionary. I only use this when the dictionary object is...
How to implement the Android ActionBar back button?
...me="com.example.myfirstapp.DisplayMessageActivity"
android:label="@string/title_activity_display_message"
android:parentActivityName="com.example.myfirstapp.MainActivity" >
<!-- The meta-data element is needed for versions lower than 4.1 -->
<meta-data
...