I am looking for a JavaScript equivalent of the Python:
pass
statement that does not run the function of the ...
notation?
Is the
python's pass is required for empty blocks.
try:
# something
except Exception:
pass
In javascript you can simply catch an empty block
try {
// some code
} catch (e) {
// This here can be empty
}
Javascript does not have a python pass
equivalent, unfortunately.
For example, it is not possible in javascript to do something like this:
process.env.DEV ? console.log('Connected..') : pass
Instead, we must do this:
if (process.env.DEV) console.log('Connected..')
The advantage of using the pass
statement, among others, is that in the course of the development process we can evolve from the above ternary operator example in this case without having to turn it into a full if
statement.
you could create a function that actually does nothing.
const pass = t => t
try {
pass()
} else {
console.log('helloworld!')
}
Python's pass
mainly exists because in Python whitespace matters within a block. In Javascript, the equivalent would be putting nothing within the block, i.e. {}
.
I've found that I get an error with empty braces, instead I put a semicolon in there, basically the same thing:
try { //something; } catch (err) { ; }
I know this is a very old answer but i guess that is also possible to do something like this.
You can declare a constant that contains a string.
const pass = 'pass';
if (condition) {
pass
} else {
console.log('hi!')
}
However note also that this may be a better option.
if (condition) {}
else {
console.log('cool!')
}