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How should I read a file line-by-line in Python?
...ndle when it collects the file object, therefore as long as you don't have extra references to the file object and you don't disable GC and you're not opening many files in quick succession, you're unlikely to get "too many files open" due to not closing the file.
– Lie Ryan
...
What exactly does += do in python?
... # empty list
x += "something" # iterates over the string and appends to list
print(x) # ['s', 'o', 'm', 'e', 't', 'h', 'i', 'n', 'g']
versus
x=[] # empty list
x = x + "something" # TypeError: can only concatenate list (not "str") to list...
Reactjs convert html string to jsx
.../div>
Safer - Use the Unicode number for the entity inside a Javascript string.
<div>{'First \u00b7 Second'}</div>
or
<div>{'First ' + String.fromCharCode(183) + ' Second'}</div>
Or a mixed array with strings and JSX elements.
<div>{['First ', <span>&mi...
Integrating the ZXing library directly into my Android application
... layout file
ImageView imageView = (ImageView) findViewById(R.id.qrCode);
String qrData = "Data I want to encode in QR code";
int qrCodeDimention = 500;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null,
Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimention);
tr...
Where are static variables stored in C and C++?
...-------------------------
Const Data The const data area stores string literals and
other data whose values are known at compile
time. No objects of class type can exist in
this area. All data in this area is available
...
Convert Elixir string to integer or float
I need to convert a string to a floating point value or an integer. There was no method such as,
8 Answers
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Delete newline in Vim
...
J deletes extra leading spacing (if any), joining lines with a single space. (With some exceptions: after /[.!?]$/, two spaces may be inserted; before /^\s*)/, no spaces are inserted.)
If you don't want that behavior, gJ simply remov...
JBoss vs Tomcat again [closed]
...Tomcat. That would be almost as lightweigth.
If you won't need any of the extras JBoss has to offer, go for the one you're most comfortable with. Which is easiest to configure and maintain for you?
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Get name of caller function in PHP?
...ts the caller of the function where this function is called from
* @param string what to return? (Leave empty to get all, or specify: "class", "function", "line", "class", etc.) - options see: http://php.net/manual/en/function.debug-backtrace.php
*/
function getCaller($what = NULL)
{
$trace = ...
How can I wait for a thread to finish with .NET?
...from .NET 4 this sample can help you:
class Program
{
static void Main(string[] args)
{
Task task1 = Task.Factory.StartNew(() => doStuff());
Task task2 = Task.Factory.StartNew(() => doStuff());
Task task3 = Task.Factory.StartNew(() => doStuff());
Task...