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Thread vs ThreadPool
...from the pool rather than one I've explicitly created? I'm thinking specifically of .NET here, but general examples are fine.
...
How can I make an entire HTML form “readonly”?
...ByCSS)
function lockForm(){
btn1.classList.toggle('on');
[].slice.call( form.elements ).forEach(function(item){
item.disabled = !item.disabled;
});
}
function lockFormByCSS(){
btn2.classList.toggle('on');
form.classList.toggle('lock');
}
form{ position:relative; }
fo...
How do I check for null values in JavaScript?
...fined, false and the numbers 0 and NaN
Please note that if you are specifically checking for numbers it is a common mistake to miss 0 with this method, and num !== 0 is preferred (or num !== -1 or ~num (hacky code that also checks against -1)) for functions that return -1, e.g. indexOf)
...
How to see an HTML page on Github as a normal rendered HTML page to see preview in browser, without
...ub Pages to render this.
Fork the repository to your account.
Clone it locally on your machine
Create a gh-pages branch (if one already exists, remove it and create a new one based off master).
Push the branch back to GitHub.
View the pages at http://username.github.io/repo`
In code:
git clone ...
How to revert initial git commit?
... that:
You have only one commit on your master branch
There is no branch called old_master so I'm free to use that name
It will rename the existing branch to old_master and create a new, orphaned, branch master (like it is created for new repositories) after which you can freely delete old_maste...
Android: How to turn screen on and off programmatically?
...ndow.addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
}
And call this method from onResume().
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How to solve java.lang.NoClassDefFoundError?
...der (in this case java.net.URLClassLoader), which is responsible for dynamically loading classes, cannot find the .class file for the class that you're trying to use.
Your code wouldn't compile if the required classes weren't present (unless classes are loaded with reflection), so usually this exc...
What does immutable mean?
...your second alert it will show "foo" instead of oo.
Does it mean, when calling methods on
a string, it will return the modified
string, but it won't change the
initial string?
Yes. Nothing can change the string once it is created. Now this doesn't mean that you can't assign a new strin...
Create batches in linq
...
You can eliminate the check for done by just always calling e.Count() after yield return e. You would need to rearrange the loop in BatchInner to not invoke the undefined behavior source.Current if i >= size. This will eliminate the need to allocate a new BatchInner for eac...
dispatch_after - GCD in Swift?
...r familiar GCD methods to get queues. The block is a Swift closure. Specifically, dispatch_block_t is defined as () -> Void, which is equivalent to () -> ().
Example usage:
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(1 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_ge...