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Recommended way of making React component/div draggable
...anything w/ a higher z-index that gets in the way, then you're toast,
// etc.
componentDidUpdate: function (props, state) {
if (this.state.dragging && !state.dragging) {
document.addEventListener('mousemove', this.onMouseMove)
document.addEventListener('mouseup', this.onM...
Change column type from string to float in Pandas
... data type you can give your datatype .what do you want like str,float,int etc.
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How does BLAS get such extreme performance?
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Most arguments to the second question -- assembler, splitting into blocks etc. (but not the less than N^3 algorithms, they are really overdeveloped) -- play a role. But the low velocity of your algorithm is caused essentially by matrix size and the unfortunate arrangement of the three nested loops....
Changing the default header comment license in Xcode
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This only changes the organisation and not the license etc.
– mmmmmm
Make $JAVA_HOME easily changable in Ubuntu [closed]
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Put the environment variables into the global /etc/environment file:
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export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
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Execute "source /etc/environment" in every shell where you want the variables to be updated:
$ source /etc/environment
Check that it works:
$ e...
How do I get the number of elements in a list?
...he Python world. * There's no difference between class, variable, global, etc in these conventions.
– Shai Alon
Dec 4 '16 at 16:30
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How to measure time taken between lines of code in python?
...g about time.time() is that it is affected by time sunchronization ntpdate etc. I would say time.clock() would be the only reliable alternative because of this
– www.jensolsson.se
Jul 26 '16 at 6:58
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Two-way encryption: I need to store passwords that can be retrieved
...ect against information disclosure vulnerabilities (XSS, remote inclusion, etc). If it gets out, the attacker can eventually crack the encryption (no encryption is 100% un-reversible without the key - As @NullUserException points out this is not entirely true. There are some encryption schemes tha...
Extracting text from HTML file using Python
...exts, except you include other text container tags like H1, H2 ...., span, etc. I had to tweak it for a better coverage.
– Obinna Nnenanya
Jan 21 '19
How to replace multiple strings in a file using PowerShell
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Assuming you can only have one 'something1' or 'something2', etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'somethi...