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How to open a file for both reading and writing?
...reopening:
with open(filename, "r+") as f:
data = f.read()
f.seek(0)
f.write(output)
f.truncate()
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Test if number is odd or even
...n which will return true if $number is even, false if odd:
$number % 2 == 0
Works for every integerPHP value, see as well Arithmetic OperatorsPHP.
Example:
$number = 20;
if ($number % 2 == 0) {
print "It's even";
}
Output:
It's even
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Search for “does-not-contain” on a DataFrame in pandas
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edited Jan 24 '19 at 20:23
cs95
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AngularJS - $anchorScroll smooth/duration
...naudbreton/angular-smoothscroll
https://gist.github.com/justinmc/d72f38339e0c654437a2
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How to determine if a number is odd in JavaScript
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360
Use the below code:
function isOdd(num) { return num % 2;}
console.log("1 is " + isOdd(1))...
Formatting Numbers by padding with leading zeros in SQL Server
We have an old SQL table that was used by SQL Server 2000 for close to 10 years.
13 Answers
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R programming: How do I get Euler's number?
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150
The R expression
exp(1)
represents e, and
exp(2)
represents e^2.
This works because exp i...
Assigning default value while creating migration file
...olumn :tweet, :retweets_count, :integer, :null => false, :default => 0
... and read Rails API
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Why does the C++ map type argument require an empty constructor when using []?
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edited Jul 8 '16 at 0:30
answered Mar 30 '09 at 0:01
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