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How to create an array of object literals in a loop?
...s a property lookup that you execute with each iteration, which isn't free and can be avoided. Micro-optimization? Possibly. Also, it is a "live" value - if you modify the array in the loop, the length will change on successive iterations which could lead to infinity. Give this a watch youtube.com...
Can I click a button programmatically for a predefined intent?
...splaying UI.
Can I get the "Send" button click from the MMS-SMSProvider in Android?
3 Answers
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Turning off some legends in a ggplot
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Note to self: if you have a geom_linerange() and the legend is showing a cross instead of a line, insert show.legend=FALSE inside the geom_linerange().
– PatrickT
Sep 30 '17 at 8:51
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how to permit an array with strong parameters
..., Date, Time, DateTime, StringIO, IO,
ActionDispatch::Http::UploadedFile and Rack::Test::UploadedFile.
To declare that the value in params must be an array of permitted scalar values map the key to an empty array:
params.permit(:id => [])
In my app, the category_ids are passed to the c...
How is the “greater than” or “>” character used in CSS?
... in CSS files but I have no idea how its used. Can anyone explain it to me and show how they are useful in making a page style easier?
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Chrome: console.log, console.debug are not working
Console.log and debug not printing, only return undefined. Why it can be?
I've tried to re-install chrome, but it doesn't help.
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How to read all files in a folder from Java?
... concern is efficiency, is it fast enough to be used for systems with thousands of files or is there a better alternative?
– Nitin Labhishetty
Mar 10 '14 at 15:28
17
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How to change font size on part of the page in LaTeX?
... The first parameter to fontsize is the font size to switch to and the second is the line spacing to use
– Rose Perrone
Feb 20 '14 at 19:00
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HTTP Error 404.3 - Not Found" while browsing wcf service on Windows Server 2008(64bit)
I am developing an application based on .Net Framework 3.5 sp1 and hosted on windows server 2008(64bit).
7 Answers
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How to create a JavaScript callback for knowing when an image is loaded?
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.complete + callback
This is a standards compliant method without extra dependencies, and waits no longer than necessary:
var img = document.querySelector('img')
function loaded() {
alert('loaded')
}
if (img.complete) {
loaded()
} else {
img.addEven...