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NodeJS / Express: what is “app.use”?
...ed when the base path matches.
For example:
if you are using app.use() in indexRouter.js , like this:
//indexRouter.js
var adsRouter = require('./adsRouter.js');
module.exports = function(app) {
app.use('/ads', adsRouter);
}
In the above code app.use() mount the path on '/ads' to adsRouter...
Strangest language feature
...
In C, arrays can be indexed like so:
a[10]
which is very common.
However, the lesser known form (which really does work!) is:
10[a]
which means the same as the above.
...
git mv and only change case of directory
...tting and then collapsing the 2 commits. You can just move the file in the index, but to someone that is new to git, it may not be explicit enough as to what is happening. The shorter version is
git mv foo foo2
git mv foo2 FOO
git commit -m "changed case of dir"
As suggested in one of the comment...
Getting a slice of keys from a map
...
Why aren't you using an index with the range, for i, k := range mymap{. That way you don't need the i++?
– mvndaai
Apr 29 '16 at 17:57
...
Detect Safari browser
...
You can easily use index of Chrome to filter out Chrome:
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf('safari') != -1) {
if (ua.indexOf('chrome') > -1) {
alert("1") // Chrome
} else {
alert("2") // Safari
}
}
...
Create an empty data.frame
...
@Katya, if you do df[NA,] this will affect the index as well (which is unlikely to be what you want), I would instead use df[TRUE,] = NA; however notice that this will overwrite the original. You will need to copy the dataframe first copy_df = data.frame(df) and then copy...
Long list of if statements in Java
...ew CommandB(), new CommandC(), ...
}
Then you could execute a command by index
commands[7].exec();
Plagiarising from DFA's, but having an abstract base class instead of an interface. Notice the cmdKey which would be used later. By experience, I realise that frequently an equipment commmand has ...
Converting String to Int with Swift
...ed to check if the collection is not empty.
text!.remove(at: text!.index(before: text!.endIndex))
// sends an editingChanged action to force the textfield to be updated
sendActions(for: .editingChanged)
}
@objc func editingChanged() {
guard value <= maxValu...
JavaScript: Object Rename Key
...key with substring method and returned a new object with new key and value indexed by original key
– Akin Hwan
Feb 10 '18 at 18:46
1
...
An example of how to use getopts in bash
...ic version of EspoCRM
-r, -rebuild, --rebuild Rebuild php vendor directory using composer and compiled css using grunt
-V, -verbose, --verbose Run script in verbose mode. Will print out each step of execution.
EOF
# EOF is found above and hence cat command ...