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How to test if list element exists?
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edited Oct 11 '11 at 3:01
answered Oct 10 '11 at 23:36
T...
Can I run javascript before the whole page is loaded?
...ng is complete.)
This wasn't available when I first wrote this answer in 2010, but here in 2020, all major modern browsers support modules natively, and if you need to support older browsers, you can use bundlers like Webpack and Rollup.js.
Use the defer attribute on a classic script tag:
<scr...
Simple explanation of clojure protocols
...lojure itself.
Clojure has actually already had Protocols since version 1.0: Seq is a Protocol, for example. But until 1.2, you couldn't write Protocols in Clojure, you had to write them in the host language.
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How to convert Set to String[]?
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edited Apr 13 '18 at 13:05
Alexander Farber
17.5k6464 gold badges203203 silver badges359359 bronze badges
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How to check if a string contains text from an array of substrings in JavaScript?
...but some is:
if (substrings.some(function(v) { return str.indexOf(v) >= 0; })) {
// There's at least one
}
Live Example:
var substrings = ["one", "two", "three"];
var str;
// Setup
console.log("Substrings: " + substrings.join(","));
// Try it where we expect a match
str = "this has one...
How can I pass selected row to commandLink inside dataTable or ui:repeat?
...the requirement.
If your servletcontainer supports a minimum of Servlet 3.0 / EL 2.2, then just pass it as an argument of action/listener method of UICommand component or AjaxBehavior tag. E.g.
<h:commandLink action="#{bean.insert(item.id)}" value="insert" />
In combination with:
public v...
Logical operator in a handlebars.js {{#if}} conditional
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edited Jun 10 '13 at 18:24
Peter Bratton
5,93455 gold badges3333 silver badges6060 bronze badges
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When should I use UNSIGNED and SIGNED INT in MySQL?
...//dev.mysql.com/doc/refman/5.6/en/integer-types.html
UNSIGNED ranges from 0 to n, while signed ranges from about -n/2 to n/2.
In this case, you have an AUTO_INCREMENT ID column, so you would not have negatives. Thus, use UNSIGNED. If you do not use UNSIGNED for the AUTO_INCREMENT column, your maxi...
How to get multiple counts with one SQL query?
...or_id,
count(*) AS total,
sum(case when level = 'exec' then 1 else 0 end) AS ExecCount,
sum(case when level = 'personal' then 1 else 0 end) AS PersonalCount
FROM yourtable
GROUP BY distributor_id
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jQuery Set Cursor Position in Text Area
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$("#set-textarea").click(function() {
setCaretToPos($("#the-textarea")[0], 10)
});
$("#set-input").click(function() {
setCaretToPos($("#the-input")[0], 10);
});
<textarea id="the-textarea" cols="40" rows="4">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tem...