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Linux command (like cat) to read a specified quantity of characters
...tes=[-]N
print the first N bytes of each file; with the leading '-', print all but the last N bytes of each file
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How do I check that a number is float or integer?
...00% incorrect. The values null, empty string, 1.0 and numerous others will all register incorrectly as integers (even with the === check).
– whoblitz
Sep 11 '13 at 2:59
...
Window.open and pass parameters by post method
...').submit();
</script>
Edit:
To set the values in the form dynamically, you can do like this:
function openWindowWithPost(something, additional, misc) {
var f = document.getElementById('TheForm');
f.something.value = something;
f.more.value = additional;
f.other.value = misc;
win...
What is the meaning of the term “free function” in C++?
...hat free functions also don't take any arguments. But I am not sure. These all are my assumptions. So could anybody define free function?
...
Facebook access token server-side validation for iPhone app
...KEN is your app's token that you got from step 1.
The debug endpoint basically dumps all information about a token, so it'll respond with something like this:
{
data: {
app_id: YOUR_APP_ID,
is_valid: true,
metadata: {
sso: "iphone-safari"
},
...
How to pass an array within a query string?
...s[]" value="Mercedes">
NOTE: Using field[] for multiple values is really poorly documented. I don't see any mention of it in the section on multi-valued keys in Query string - Wikipedia, or in the W3C docs dealing with multi-select inputs.
UPDATE
As commenters have pointed out, this is ve...
Find out whether Chrome console is open
... answer. This solution takes advantage of the fact that toString() is not called on logged objects unless the console is open.
var devtools = /./;
devtools.toString = function() {
if (!this.opened) {
alert("Opened");
}
this.opened = true;
}
console.log('%c', devtools);
// devtools.ope...
Difference between static class and singleton pattern?
...s you say that either a singleton or a static method isn't thread-safe? Usually both should be implemented to be thread-safe.
The big difference between a singleton and a bunch of static methods is that singletons can implement interfaces (or derive from useful base classes, although that's less co...
Node: log in a file instead of the console
...
Due to a recent change, you can't call stderr.pipe() anymore - it takes this now: process.__defineGetter__('stderr', function() { return fs.createWriteStream(__dirname + '/error.log', {flags:'a'}) })
– damianb
Feb 23 '13 ...
ASP.NET MVC - TempData - Good or bad practice
...e it would be gone. Well I guess I'm also hesitant to use it as its not really well defined how reliable it is.
I wonder if the problem is that you're having the action redirect to another page before the confirm step. I wonder if instead after they first submit, you could do enough processing to...