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Boolean vs boolean in Java
...oolean / boolean. Simplicity is the way to go.
If you do not need specific api (Collections, Streams, etc.) and you are not foreseeing that you will need them - use primitive version of it (boolean).
With primitives you guarantee that you will not pass null values. You will not fall in traps like ...
Select all elements with “data-” attribute without using jQuery
... Note that this is a non-IE solution: developer.mozilla.org/en-US/docs/Web/API/…. If you need to support IE, you'll have to just loop over the NodeList using a regular for loop.
– Joseph Marikle
Dec 23 '19 at 15:38
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How to execute shell command in Javascript
...se frame your code :)
You could use the child_process module from node's API. I pasted the example code below.
var exec = require('child_process').exec, child;
child = exec('cat *.js bad_file | wc -l',
function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
cons...
Facebook Callback appends '#_=_' to Return URL
...e Facebook callback, which might be helpful in certain circumstances e.g. /api/account/callback#home. When you are redirected back, it'll at least be a hash that corresponds to a known route if you are using backbone.js or similar (not sure about jquery mobile).
...
When is the @JsonProperty property used and what is it used for?
...able is directly used to serialize data. If you are about to remove system api from system implementation, in some cases, you have to rename variable in serialization/deserialization. @JsonProperty is a meta data to tell serializer how to serial object. It is used to:
variable name
access (READ, W...
Identify duplicates in a List
...
I took John Strickler's solution and remade it to use the streams API introduced in JDK8:
private <T> Set<T> findDuplicates(Collection<T> collection) {
Set<T> uniques = new HashSet<>();
return collection.stream()
.filter(e -> !uniques.add(e)...
Should I return EXIT_SUCCESS or 0 from main()?
...bout people expecting 0 to be automatically bad is off the mark. Very many APIs use 0 for success, and non-0 for failure, even in the stdlib. E.g. stdlib (fclose(), setvbuf(), ...), POSIX (listen(), pthread_create(), pipe(), ...), and many, many other libraries (e.g. OpenGL [glGetError()], zlib [def...
Passing arguments to angularjs filters
...
Actually you can pass a parameter ( http://docs.angularjs.org/api/ng.filter:filter ) and don't need a custom function just for this. If you rewrite your HTML as below it'll work:
<div ng:app>
<div ng-controller="HelloCntl">
<ul>
<li ng-repeat="friend in frien...
Using querySelectorAll to retrieve direct children
...s you can also skip .querySelectorAll and use other good old-fashioned DOM API features. For example, instead of myDiv.querySelectorAll(":scope > *") you could just write myDiv.children, for example.
Otherwise if you can't yet rely on :scope, I can't think of another way to handle your situation...
PDO get the last ID inserted
...$db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
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