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SQL order string as number
... | 0 /* the string does not contain a number, so the result is 0 */
'123miles' | 123
'$123' | 0 /* the left side of the string does not start with a number */
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Alarm Manager Example
I want to implement a schedule function in my project. So I Googled for an Alarm manager program but I can`t find any examples.
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size_t vs. uintptr_t
...ed understanding of certain basic items. If you see this answer as "poking fun", I assure you that's a misunderstanding of my intent. Assuming that you're referring to my 'logical fallacy' comment (I can't see any other possibility), that was meant as a factual statement, not some statement made at ...
How are echo and print different in PHP? [duplicate]
...and a ", 1, 2, 3; // comma-separated without parentheses
echo ("and a 123"); // just one parameter with parentheses
print() can only take one parameter:
print ("and a 123");
print "and a 123";
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Exporting a function in shell
Please tell me how to export a function in parent shell (bash, sh or ksh) so that the function will be available to all the child process launced from the parent process?
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Removing numbers from string [closed]
...ng/regular expressions:
For Python 2:
from string import digits
s = 'abc123def456ghi789zero0'
res = s.translate(None, digits)
# 'abcdefghizero'
For Python 3:
from string import digits
s = 'abc123def456ghi789zero0'
remove_digits = str.maketrans('', '', digits)
res = s.translate(remove_digits)
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Get context of test project in Android junit test case
...dTest {
lateinit var instrumentationContext: Context
@Before
fun setup() {
instrumentationContext = InstrumentationRegistry.getInstrumentation().context
}
@Test
fun someTest() {
TODO()
}
}
If you want also app context run:
InstrumentationRegistry.get...
Convert Long into Integer
...
Here are three ways to do it:
Long l = 123L;
Integer correctButComplicated = Integer.valueOf(l.intValue());
Integer withBoxing = l.intValue();
Integer terrible = (int) (long) l;
All three versions generate almost identical byte code:
0 ldc2_w <Long 123>...
Django set default form values
... value when calling form constructor:
form = JournalForm(initial={'tank': 123})
or set the value in the form definition:
tank = forms.IntegerField(widget=forms.HiddenInput(), initial=123)
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Formatting a number with exactly two decimals in JavaScript
...); // Returns 1.27
This genericity also provides some cool stuff:
round(1234.5678, -2); // Returns 1200
round(1.2345678e+2, 2); // Returns 123.46
round("123.45"); // Returns 123
Now, to answer the OP's question, one has to type:
round(10.8034, 2).toFixed(2); // Returns "10.80"
round...