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Can you remove elements from a std::list while iterating through it?
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You have to increment the iterator first (with i++) and then remove the previous element (e.g., by using the returned value from i++). You can change the code to a while loop like so:
std::list<item*>::iterator i = items.begin();
while (i != items.e...
Java null check why use == instead of .equals()
...a null check one should use == instead of .equals(). What are the reasons for this?
16 Answers
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How to go to a specific element on page? [duplicate]
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The standard technique in plugin form would look something like this:
(function($) {
$.fn.goTo = function() {
$('html, body').animate({
scrollTop: $(this).offset().top + 'px'
}, 'fast');
return this; // for chaining......
Building a complete online payment gateway like Paypal [closed]
...isn't about integrating an existing payment gateway into my site. This is more of a architectural question.
2 Answers
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Difference between attr_accessor and attr_accessible
In Rails, what is the difference between attr_accessor and attr_accessible ? From my understanding, using attr_accessor is used to create getter and setter methods for that variable, so that we can access the variable like Object.variable or Object.variable = some_value .
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How to make RatingBar to show five stars
...roblem is that the number of stars doesn't seem to do anything at all. In portrait-layout I get 6 stars and when I flip the phone I get about 10 stars. I tried to set the number of stars in my Activity ( myBar.setNumStars(5) ) that loads the xml but there was no success with that option either.
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How do I compare strings in Java?
I've been using the == operator in my program to compare all my strings so far.
However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug.
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Remove textarea inner shadow on Mobile Safari (iPhone)
...ul when adding this property on input type checkbox and radio button selectors, because it hides the checkboxes and radio buttons ;)
– Zain Shaikh
Nov 2 '12 at 16:11
14
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Convert boolean to int in Java
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In the case where myBoolean stands for a boolean expression, using parenthesis is more readable.
– rsp
Sep 25 '10 at 12:33
40
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Convert a negative number to a positive one in JavaScript
... ones complement simply inverts the sign.
– jduncanator
Dec 18 '14 at 12:53
You might want to even consider -x. It's p...