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What is hashCode used for? Is it unique?
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5 Answers
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How do HTML parses work if they're not using regexp?
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5 Answers
5
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Get Android API level of phone currently running my application [duplicate]
... 1.1 Petit Four
3 CUPCAKE Android 1.5 Cupcake
4 DONUT Android 1.6 Donut
5 ECLAIR Android 2.0 Eclair
6 ECLAIR_0_1 Android 2.0.1 Eclair ...
Generate random password string with requirements in javascript
I want to generate a random string that has to have 5 letters from a-z and 3 numbers.
18 Answers
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Change column type from string to float in Pandas
... or a single column of a DataFrame.
>>> s = pd.Series(["8", 6, "7.5", 3, "0.9"]) # mixed string and numeric values
>>> s
0 8
1 6
2 7.5
3 3
4 0.9
dtype: object
>>> pd.to_numeric(s) # convert everything to float values
0 8.0
1 6.0
2 7.5
3 3....
Why are Objective-C delegates usually given the property assign instead of retain?
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175
The reason that you avoid retaining delegates is that you need to avoid a retain cycle:
A creat...
In HTML5, should the main navigation be inside or outside the element?
In HTML5, I know that <nav> can be used either inside or outside the page's masthead <header> element. For websites having both secondary and main navigation, it seems common to include the secondary navigation as a <nav> element inside the masthead <header> element ...
jQuery: How can i create a simple overlay?
...ome sort of opacity.
This will be your CSS for cross browser opacity of 0.5:
#overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
filter:alpha(opacity=50);
-moz-opacity:0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
z-...
Array Length in Java
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edited Apr 23 '18 at 5:17
Azeem
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answered Ja...
Is there a way to 'uniq' by column?
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335
sort -u -t, -k1,1 file
-u for unique
-t, so comma is the delimiter
-k1,1 for the key field 1
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