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sed or awk: delete n lines following a pattern
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192
I'll have a go at this.
To delete 5 lines after a pattern (including the line with the patter...
Mimicking sets in JavaScript?
...bj = {};
// or create an object with some items already in it
var obj = {"1":true, "2":true, "3":true, "9":true};
Question 1: Is A in the list:
if (A in obj) {
// put code here
}
Question 2: Delete 'A' from the list if it's there:
delete obj[A];
Question 3: Add 'A' to the list if it wasn't a...
Python Pandas merge only certain columns
Is it possible to only merge some columns? I have a DataFrame df1 with columns x, y, z, and df2 with columns x, a ,b, c, d, e, f, etc.
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How to elegantly check if a number is within a range?
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157
There are a lot of options:
int x = 30;
if (Enumerable.Range(1,100).Contains(x))
//true
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Eclipse “Error: Could not find or load main class”
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Reverse / invert a dictionary mapping
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edited Oct 14 '16 at 16:21
Dave Lasley
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How to import multiple .csv files at once?
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13 Answers
13
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Is it possible to set the stacking order of pseudo-elements below their parent element? [duplicate]
...ext.
#element {
position: relative; /* optional */
width: 100px;
height: 100px;
background-color: blue;
}
#element::after {
content: "";
width: 150px;
height: 150px;
background-color: red;
/* create a new stacking context */
position: ab...
How do I split a string with multiple separators in javascript?
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731
Pass in a regexp as the parameter:
js> "Hello awesome, world!".split(/[\s,]+/)
Hello,awesome...
How do I add 24 hours to a unix timestamp in php?
...ours due to (among other circumstances) daylight saving time:
strtotime('+1 day', $timestamp);
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