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Check if element exists in jQuery [duplicate]
How do I check if an element exists if the element is created by .append() method?
$('elemId').length doesn't work for me.
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What is event bubbling and capturing?
What is the difference between event bubbling and capturing? When should one use bubbling vs capturing?
6 Answers
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How do I check if a directory exists? “is_dir”, “file_exists” or both?
I want to create a directory if it does'nt exist already.
12 Answers
12
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jQuery 'input' event
I've never heard of an event in jQuery called input till I saw this jsfiddle .
8 Answers
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CAP theorem - Availability and Partition Tolerance
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Consistency means that data is the same across the cluster, so you can read or write from/to any node and get the same data.
Availability means the ability to access the cluster even if a node in the cluster goes down.
Partitio...
ReactJS Two components communicating
.... A few example scenarios that come to mind right now:
<Filters /> is a child component of <List />
Both <Filters /> and <List /> are children of a parent component
<Filters /> and <List /> live in separate root components entirely.
There may be other scenario...
Is it better to return null or empty collection?
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Empty collection. Always.
This sucks:
if(myInstance.CollectionProperty != null)
{
foreach(var item in myInstance.CollectionProperty)
/* arrgh */
}
It is considered a best practice to NEVER return null when returning a collection or enumerable. ...
How many constructor arguments is too many?
...;
}
public CustomerBuilder withSurname(String surname) {
this.surname = surname;
return this;
}
public CustomerBuilder withFirstName(String firstName) {
this.firstName = firstName;
return this;
}
public CustomerBuilder withSsn(String ssn) {
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What blocks Ruby, Python to get Javascript V8 speed? [closed]
...rking on VMs for 25 years (and all of those VMs have lead up to V8), which is basically his entire (professional) life. Some of the people writing Ruby VMs aren't even 25 years old.
Are there any Ruby / Python features that are blocking implementation of optimizations (e.g. inline caching) V8 en...
What are the pros and cons of the leading Java HTML parsers? [closed]
...nd Google, I've found that there are a few Java HTML parsers which are consistently recommended by various parties. Unfortunately it's hard to find any information on the strengths and weaknesses of the various libraries. I'm hoping that some people have spent some comparing these libraries, and can...