大约有 20,000 项符合查询结果（耗时：0.0405秒） [XML]
How to use Servlets and Ajax?
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Indeed, the keyword is "ajax": Asynchronous JavaScript and XML. However, last years it's more than often Asynchronous JavaScript and JSON. Basically, you let JS execute an asynchronous HTTP request and update the HTML DOM tree based on the response data.
Since it's pretty...
HTML - how can I show tooltip ONLY when ellipsis is activated
...ere's a way that does it using the built-in ellipsis setting, and adds the title attribute on-demand (with jQuery) building on Martin Smith's comment:
$('.mightOverflow').bind('mouseenter', function(){
var $this = $(this);
if(this.offsetWidth < this.scrollWidth && !$this.attr('t...
How to update a record using sequelize for node?
...change its properties and update it, for example:
Project.find({ where: { title: 'aProject' } })
.on('success', function (project) {
// Check if record exists in db
if (project) {
project.update({
title: 'a very different title now'
})
.success(function () {})
...
What does the construct x = x || y mean?
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It means the title argument is optional. So if you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with boolean expr...
HTML img tag: title attribute vs. alt attribute?
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I'd go for both. Title will show a nice tooltip in all browsers and alt will give a description when browsing in a browser with no images.
That said, I'd love to see some stats of how many "surfers" out there going to a "store" to browse mer...
How can I find which tables reference a given table in Oracle SQL Developer?
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Less useful if you need this in a script for some reason, but if you just need to know about the connections this seems like the modern way to go.
– SnoringFrog
Mar 21 '17 at 14:58
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How to find largest objects in a SQL Server database?
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I've been using this SQL script (which I got from someone, somewhere - can't reconstruct who it came from) for ages and it's helped me quite a bit understanding and determining the size of indices and tables:
SELECT
t.name AS TableName,
i.n...
InputStream from a URL
...the page.
<!DOCTYPE html>
<html>
<head>
<title>Home page</title>
<meta charset="UTF-8">
</head>
<body>
<form action="ReadWebPage">
<label for="page">Enter a web page name:</label>
...
MySQL JOIN the most recent row only?
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You may want to try the following:
SELECT CONCAT(title, ' ', forename, ' ', surname) AS name
FROM customer c
JOIN (
SELECT MAX(id) max_id, customer_id
FROM customer_data
GROUP BY customer_id
) c_max ON...
Unix command-line JSON parser? [closed]
... pretty print json. If you need to extract/manipulate json data in a shell script, I would use jq which is pure awesome at what is does...
– muhqu
May 9 '14 at 8:04
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