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Why can't variable names start with numbers?
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119
Because then a string of digits would be a valid identifier as well as a valid number.
int 17...
Remove/hide a preference from the screen
...ttribute in your xml
preferences.xml
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<CheckBoxPreference
android:defaultValue="false"
...
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...了。我强烈推荐每个企业家都学习编程。
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编程 免费学习
How to add anything in through jquery/javascript?
...;
favicon.id = 'myFavicon';
favicon.rel = 'shortcut icon';
favicon.href = 'http://www.test.com/my-favicon.ico';
document.head.appendChild(favicon);
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Difference between map, applymap and apply methods in Pandas
...485454 -0.477388 -0.309548
In [118]: f = lambda x: x.max() - x.min()
In [119]: frame.apply(f)
Out[119]:
b 1.133201
d 1.965980
e 2.829781
dtype: float64
Many of the most common array statistics (like sum and mean) are DataFrame methods,
so using apply is not necessary.
Ele...
How does this print “hello world”?
...101
v | 118 | 1110110 | 10110
w | 119 | 1110111 | 10111
x | 120 | 1111000 | 11000
y | 121 | 1111001 | 11001
z | 122 | 1111010 | 11010
Here you can see that th...
Is there a Rake equivalent in Python?
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Shovel seems promising:
Shovel — Rake for Python
https://github.com/seomoz/shovel
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Why does PEP-8 specify a maximum line length of 79 characters? [closed]
...ks that 79 is optimal, but there's no obvious gain in changing it to 99 or 119 or whatever your preferred line length is. I think the choices are these: follow the rule and find a worthwhile cause to battle for, or provide some data that demonstrates how readability and productivity vary with line l...
Get Character value from KeyCode in JavaScript… then trim
... 61 while the character A has a charcode of 41 (according to, for example, http://www.utf8-chartable.de/). However, those are hex values, converting to decimal gives us a charcode of 65 for "A" and 97 for "a".[1] This is consistent with what we get from String.fromCharCode for these values.
My ow...
What's the difference between REST & RESTful
...ces which only used GET or POST. RESTful accentuate on the complete use of HTTP verbs, and URL naming conventions. But it's my point of view.
– Martin
Jan 8 '15 at 9:24
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