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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
...I end up checking for null, just before the iteration of the for-each loop starts. Like this:
10 Answers
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What is the pythonic way to avoid default parameters that are empty lists?
... inside).
But if you didn't intend to mutate the argument, just use it as starting point for a list, you can simply copy it:
def myFunc(starting_list = []):
starting_list = list(starting_list)
starting_list.append("a")
print starting_list
(or in this simple case just print starting_l...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ion
这个section用于存放用户代码，.text section必须从global _start开始，来告诉内核程序从什么地方开始执行(类似于C或JAVA中的main函数，这里指一个开始位置)
section .text
global _start
_start:
pop ebx ;这里...
Getting started with F# [closed]
... your browser (Silverlight). (contains interactive tutorial walkthroughs)
Start by watching videos and presentations (BTW, An Introduction to Microsoft F# by Luca Bolognese is still one of the best presentations on the subject). Then read the following two must-read books:
Programming F#: A compr...
Multiprocessing - Pipe vs Queue
...gs=((p_output, p_input),))
reader_p.daemon = True
reader_p.start() # Launch the reader process
p_output.close() # We no longer need this part of the Pipe()
_start = time.time()
writer(count, p_input) # Send a lot of stuff to reader_proc()
p_...
How do I create and read a value from cookie?
...ion getCookie(c_name) {
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";", c_start);
if (c_end == -1) {
...
Java: Getting a substring from a string starting after a particular character
I have a string:
9 Answers
9
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Changing the “tick frequency” on x or y axis in matplotlib?
...ld use ax.get_xlim() to discover what limits Matplotlib has already set.
start, end = ax.get_xlim()
ax.xaxis.set_ticks(np.arange(start, end, stepsize))
The default tick formatter should do a decent job rounding the tick values to a sensible number of significant digits. However, if you wish to h...
How to change Rails 3 server default port in develoment?
On my development machine, I use port 10524. So I start my server this way :
9 Answers
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What is bootstrapping?
...ng, a bootstrap loader is the first piece of code that runs when a machine starts, and is responsible for loading the rest of the operating system. In modern computers it's stored in ROM, but I recall the bootstrap process on the PDP-11, where you would poke bits via the front-panel switches to load...