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Is the ternary operator faster than an “if” condition in Java [duplicate]
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106
Does it matter which I use?
Yes! The second is vastly more readable. You are trading one l...
How to detect shake event with android?
... curTime = System.currentTimeMillis();
// only allow one update every 100ms.
if ((curTime - lastUpdate) > 100) {
long diffTime = (curTime - lastUpdate);
lastUpdate = curTime;
x = values[SensorManager.DATA_X];
y = values[SensorManager.DATA_Y];
z = values[Sens...
App Inventor 2在不同的屏幕之间传值 · App Inventor 2 中文网
...系方式： 不需要回复的可留空~ 意见反馈（300字以内）： 给个鼓励也行呐~o~ 提供截图（仅截取当前可视区域） delete edit 高亮或隐藏信息 ...
Regex for splitting a string using space when not surrounded by single or double quotes
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+200
I don't understand why all the others are proposing such complex regular expressions or such long code. Essentially, you want to gra...
Selecting text in an element (akin to highlighting with your mouse)
...election = window.getSelection();
selection.setBaseAndExtent(text, 0, text, 1);
}
}
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Javascript - Append HTML to container element without innerHTML
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102
To give an alternative (as using DocumentFragment does not seem to work): You can simulate it b...
How to select option in drop down using Capybara
I'm trying to select an item from a drop down menu using Capybara (2.1.0).
9 Answers
9...
How do you implement a re-try-catch?
...ed to enclose your try-catch inside a while loop like this: -
int count = 0;
int maxTries = 3;
while(true) {
try {
// Some Code
// break out of loop, or return, on success
} catch (SomeException e) {
// handle exception
if (++count == maxTries) throw e;
}...
How to create module-wide variables in Python? [duplicate]
...e true. But for variables that might contain a number value that might be 0, you can't just say if not variablename; in that case, you should explicitly test for None using the is operator. I modified the example to add an explicit None test. The explicit test for None is never wrong, so I defaul...
PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...manual/en/function.sprintf.php
<?php
$num = 4;
$num_padded = sprintf("%02d", $num);
echo $num_padded; // returns 04
?>
It will only add the zero if it's less than the required number of characters.
Edit: As pointed out by @FelipeAls:
When working with numbers, you should use %d (rather th...