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When to use valueChangeListener or f:ajax listener?
...hen using <f:ajax listener> instead of valueChangeListener, it would by default executed during the HTML DOM change event already. Inside UICommand components and input components representing a checkbox or radiobutton, it would be by default executed during the HTML DOM click event only.
<...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
... a row in the `mysql`.`user` table with no privileges set.
The IDENTIFIED BY clause indicates that a password is set for that user. How do we know a user is who they say they are? They identify themselves by sending the correct password for their account.
A user's password is one of those global ...
Font from origin has been blocked from loading by Cross-Origin Resource Sharing policy
...s
Header add Access-Control-Allow-Origin "*"
even better, as suggested by @david thomas, you can use a specific domain value, e.g.
Header add Access-Control-Allow-Origin "your-domain.com"
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What's the difference between dependencies, devDependencies and peerDependencies in npm package.json
...an error if multiple incompatible versions of the dependency would be used by different dependencies.
expected to start on 3.0 (untested): give a warning if missing on npm install, and you have to solve the dependency yourself manually. When running, if the dependency is missing, you get an error (m...
The case against checked exceptions
...w that you did - and it's always bugged me. In fact, the argument was made by the interviewee (if this is indeed the post you're talking about) Anders Hejlsberg, the MS genius behind .NET and C#.
http://www.artima.com/intv/handcuffs.html
Fan though I am of Hejlsberg and his work, this argument...
What's the difference between a catalog and a schema in a relational database?
... using the same Postgres server engine.
The word cluster is also defined by the SQL Standard in the same way as in Postgres. Closely following the SQL Standard is a primary goal of the Postgres project.
The SQL-92 specification says:
A cluster is an implementation-defined collection of catalo...
How to Get Element By Class in JavaScript?
...tentInContainer(matchClass, content) {
var elems = document.getElementsByTagName('*'), i;
for (i in elems) {
if((' ' + elems[i].className + ' ').indexOf(' ' + matchClass + ' ')
> -1) {
elems[i].innerHTML = content;
}
}
}
The way it works i...
Select element by exact match of its content
...</span></p> and similar, you can avoid the calls to $ and text by using innerHTML directly:
return this.innerHTML === "hello";
...but you'd have to have a lot of paragraphs for it to matter, so many that you'd probably have other issues first. :-)
...
Rails: Why does find(id) raise an exception in rails? [duplicate]
...e architects intended find(id) to work, as indicated in the RDoc:
Find by id - This can either be a specific id (1), a list of ids (1, 5, 6), or an array of ids ([5, 6, 10]). If no record can be found for all of the listed ids, then RecordNotFound will be raised.
If you don't want the exceptio...
Does the default constructor initialize built-in types?
Does the default constructor (created by the compiler) initialize built-in-types?
7 Answers
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