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Writing files in Node.js
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There are a lot of details in the File System API. The most common way is:
const fs = require('fs');
fs.writeFile("/tmp/test", "Hey there!", function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
// Or
fs.writeFileSync('/tmp/test-sync...
Python: Get relative path from comparing two absolute paths
...te paths. I need to check if the location referring to by one of the paths is a descendant of the other. If true, I need to find out the relative path of the descendant from the ancestor. What's a good way to implement this in Python? Any library that I can benefit from?
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Moving decimal places over in a double
...ould use rounding or expect to see some rounding errors. If you can't do this, use BigDecimal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error.
However, 100 can be represented accurately, so try:
double x = 1...
Repository Pattern vs DAL
Are they the same thing? Just finished to watch Rob Connery's Storefront tutorial and they seem to be similar techinques. I mean, when I implement a DAL object I have the GetStuff, Add/Delete etc methods and I always write the interface first so that I can switch db later.
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HTML Form: Select-Option vs Datalist-Option
I was wondering what the differences are between Select-Option and Datalist-Option. Is there any situation in which it would be better to use one or the other? An example of each follows:
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Are database triggers evil? [closed]
...ntil they hurt you with unintended (and very mysterious) consequences.
This just means they need to be carefully used for the proper circumstances; which in my experience is limited to relational integrity issues (sometimes with finer granularity than you can get declaratively); and usually not fo...
How to bind RadioButtons to an enum?
I've got an enum like this:
9 Answers
9
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How is the default submit button on an HTML form determined?
If a form is submitted but not by any specific button, such as
14 Answers
14
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How to see if an object is an array without using reflection?
How can I see in Java if an Object is an array without using reflection?
And how can I iterate through all items without using reflection?
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How to unmount a busy device
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YES!! There is a way to detach a busy device immediately (even if it is busy and cannot be unmounted forcefully). You may cleanup all later:
umount -l /PATH/OF/BUSY-DEVICE
umount -f /PATH/OF/BUSY-NFS (NETWORK-FILE-SYSTEM)
NOTE:
These c...