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How do I parse a string to a float or int?
In Python, how can I parse a numeric string like "545.2222" to its corresponding float value, 545.2222 ? Or parse the string "31" to an integer, 31 ?
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Android Studio inline compiler showing red errors, but compilation with gradle works fine
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edited Jun 15 '18 at 14:44
Siddharth
8,7191111 gold badges7474 silver badges129129 bronze badges
ans...
C++: what regex library should I use? [closed]
...at compile time).
Update: If you're using a C++11 compliant compiler (gcc 4.8 is NOT!), use std::regex unless you have good reason to use something else.
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Node.js: printing to console without a trailing newline?
...a newline character.
– Paul
Feb 3 '14 at 16:59
@Paulpro isn't '\n' the newline char ?
– Alexande...
this.setState isn't merging states as I would expect
...construct a new state and then call setState() on that:
var newSelected = _.extend({}, this.state.selected);
newSelected.name = 'Barfoo';
this.setState({ selected: newSelected });
I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
How to execute a raw update sql with dynamic binding in rails
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edited Feb 1 '17 at 13:24
Deepak Mahakale
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Why does volatile exist?
...one. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the optimizer sees the loop as useless (The guy never sets the value! He's nuts, g...
In a Git repository, how to properly rename a directory?
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1274
Basic rename (or move):
git mv <old name> <new name>
Case sensitive rename—eg. ...
Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
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146
You can use the logical 'OR' operator in place of the Elvis operator:
For example displayname ...
Python append() vs. + operator on lists, why do these give different results?
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145
To explain "why":
The + operation adds the array elements to the original array. The array.appe...