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What is JavaScript garbage collection?
...unctions.
Here's a simple example:
function init() {
var bigString = new Array(1000).join('xxx');
var foo = document.getElementById('foo');
foo.onclick = function() {
// this might create a closure over `bigString`,
// even if `bigString` isn't referenced anywhere!
...
How to send an email with Gmail as provider using Python?
...a
Click continue and this should give you 10 minutes for registering your new app. So proceed to doing another login attempt now and it should work.
UPDATE: This doesn't seem to work right away you may be stuck for a while getting this error in smptlib:
235 == 'Authentication successful'
503 == '...
Create zip file and ignore directory structure
... automated scripts that run in many different environments, you usually avoid global paths, because you have no idea what the global path will be. But from the cd path/to/parent/dir/ you can calculate number of double dots ../ easily.
– eddyP23
Jan 31 '19 at 11...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
...ments PersonService {
public void changeAge(Integer personId, Integer newAge) {
Person person = em.getReference(Person.class, personId);
// person is a proxy
person.setAge(newAge);
}
}
If i call find method, JPA provider, behind the scenes, will call
SELECT NAME...
maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
...can instruct m2e to ignore this.
Option 1: pom.xml
Add the following inside your <build/> tag:
<pluginManagement>
<plugins>
<!-- Ignore/Execute plugin execution -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lif...
HSL to RGB color conversion
... Ruby equivalent: rubydoc.info/gems/color/1.8/Color/RGB e.g. Color::HSL.new(40,50,60).to_rgb
– xxjjnn
Apr 18 '16 at 11:40
1
...
Select multiple records based on list of Id's with linq
...serProfiles();
var idList = GenerateIds();
var stopWatch = new Stopwatch();
stopWatch.Start();
userProfiles.Join(idList, up => up.ID, id => id, (up, id) => up).ToArray();
Console.WriteLine("Elapsed .Join time: {0}", stopWatch.Elapsed);
stopWat...
How to change ProgressBar's progress indicator color in Android
... android:progressDrawable="@drawable/greenprogress" />
Then create a new drawable with something similar to the following (In this case greenprogress.xml):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item a...
difference between throw and throw new Exception()
...ck trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message); is even worse. It creates a brand new Exception instance, losing the original stack trace of the exception, as well as its type. (eg, IOException).
In addition, some exceptions hold additional inf...
Produce a random number in a range using C#
...
You can try
Random r = new Random();
int rInt = r.Next(0, 100); //for ints
int range = 100;
double rDouble = r.NextDouble()* range; //for doubles
Have a look at
Random Class, Random.Next Method (Int32, Int32) and Random.NextDouble Method
...