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base64 encoded images in email signatures
... the same problem to include QR image/png in email. The QR image is a byte array which is generated using ZXing. We do not want to save it to a file because saving/reading from a file is too expensive (slow). So both of the answers above do not work for me. Here's what I did to solve this problem:
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What is meant by 'first class object'?
...aScript, it means that everything you can do with an Integer, a String, an Array or any other kind of Object, you can also do with functions.
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remove None value from a list without removing the 0 value
...on. In fact, in those uncommon circumstances, numpy (example if L is numpy.array: L = L[L != numpy.array(None) (from here)) or cython may be worthwhile alternatives instead of attempting to micromanage Python optimizations.
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On Duplicate Key Update same as insert
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This is a good alternative to specifying an array of keys and an array of values. Thanks.
– Mark Carpenter Jr
Oct 23 '17 at 13:25
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How do you pass multiple enum values in C#?
... use that enum as is, unless you wanted to do something like pass it as an array/collection/params array. That would let you pass multiple values. The flags syntax requires the Enum to be specified as flags (or to bastardize the language in a way that's its not designed).
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Capturing multiple line output into a Bash variable
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In case that you're interested in specific lines, use a result-array:
declare RESULT=($(./myscript)) # (..) = array
echo "First line: ${RESULT[0]}"
echo "Second line: ${RESULT[1]}"
echo "N-th line: ${RESULT[N]}"
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How can I read inputs as numbers?
...r loop shall run 'n' number of times . the second 'n' is the length of the array.
the last statement maps the integers to a list and takes input in space separated form .
you can also return the array at the end of for loop.
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Window.open and pass parameters by post method
...ucture you feed it: PHP automatically parses it and returns it as a nested array.
However, there is a single restriction: the brackets [ and ] must not be part of any key in the object (like {"this [key] is problematic" : "hello world"}). If someone knows how to escape it properly, please do tell!
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What is the id( ) function used for?
... the data type (I assume that it would be int)?
Because a list is not an array, and a list element is a reference, not an object.
When do we really use id( ) function?
Hardly ever. id() (or its equivalent) is used in the is operator.
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Java String - See if a string contains only numbers and not letters
...401 ops/s
testCharAtIsDigit thrpt 5 8.917 ± 0.767 ops/s
testCharArrayIsDigit thrpt 5 6.553 ± 0.425 ops/s
testPattern thrpt 5 1.287 ± 0.057 ops/s
testIntStreamCodes thrpt 5 0.966 ± 0.051 ops/s
testParseLong thrpt 5 0.174 ± 0.013 ops/s
testParse...