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Why 0 is true but false is 1 in the shell?
...orks have a similar convention - functions that succeed return 0 and and those that fail give back an error code describing the particular failure case.
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How to check if an object is a list or tuple (but not string)?
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123
H = "Hello"
if type(H) is list or type(H) is tuple:
## Do Something.
else
## Do Somet...
windows service vs scheduled task
What are the cons and pros of windows services vs scheduled tasks for running a program repeatedly (e.g. every two minutes)?
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When and why I should use session_regenerate_id()?
... is identified by his session id.
// User orders items
$shopcart->add('123', 20);
$shopcart->add('124', 18);
$shopcart->add('127', 5);
For each product added, a record is made in my shopcart table. Also identified by the session id.
// User saves cart in order to use it later
$shopcart-...
Fragment or Support Fragment?
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So what's the purpose of the android.app.Fragment then? If you can add this to your answer here with a bit more explanation, I would be fully satisfied. Thanks!
– jonstaff
Jul 10 '13 at 12:47
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How to create a new (and empty!) “root” branch?
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iPhone App Minus App Store?
...I have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0.
Create Self-Signed Certificate
First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use of this certificate:
Launch Keychain Access.app. With no items selected, from the Key...
When to use AtomicReference in Java?
...reference, for which monitor-based synchronization is not appropriate. Suppose you want to check to see if a specific field only if the state of the object remains as you last checked:
AtomicReference<Object> cache = new AtomicReference<Object>();
Object cachedValue = new Object();
cac...
What does “%.*s” mean in printf?
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You can use an asterisk (*) to pass the width specifier/precision to printf(), rather than har...
How do I correctly clone a JavaScript object?
...(JSON.stringify(object)):
const a = {
string: 'string',
number: 123,
bool: false,
nul: null,
date: new Date(), // stringified
undef: undefined, // lost
inf: Infinity, // forced to 'null'
}
console.log(a);
console.log(typeof a.date); // Date object
const clone = JSON...