JSMin is one workaround;
Add as a property
{
"comment": "This is a person object",
"firstName": "John",
"lastName": Doe
}
Add underscores to denote property
{
"__comment__": "This is a person object",
"__comment__firstName__":"This is the first name",
"firstName": "John",
"lastName": Doe
}
> var myArray = [0,1,2,3,4];
> delete myArray[4]
> len(myArray)
//still returns 5
//delete sets myArray[4] to undefined
> myArray.pop();
//this removes the lat one
> myArray.length = 2
//keeps the firs ttwo
> myArray.shift();
//shifts by one
> var myArray = [0,1,2,3,4];
> var newArray = myArray.slice(1,4);
//slice only extracts up to and not including the end
> var myArray = [0,1,2,3,4];
> var myArray.splice(2,1);
//splice takes (index, how many items to remove)
//here, we remove one item starting at position 2
> var myArray = [0,1,2,3,4];
> var myArray.splice(2,1, 98, 97, 96, ,3, 4);
//we can also pass further arguments into the array that adds items to the array.
// ways to delete elements: delete, pop, length, shift, slice, and splice
//let's define an object
> var myObject = {
propertyA: 1,
propertyB: 'B',
propertyC: [1,2,3],
propertyD: {sub: 'object}
}
// to delete propertyD
> delete myObject.propertyD;
//will return true or false
//usually true for objects of our own definition
> delete myObject['propertyC']
//set it to undefined, which is faster
> myObject['propertyB']= undefined;
> myObject.propertyB = undefined;
//use either delete statement, or set it to undefined.
#calls are made using subprocess
import subprocess
# for a simple command, with no args, supply the command as a string
subprocess.call('ls')
# by default, the output goes to STDOUT
#calls are made using subprocess
import subprocess
#this is how to take the output out of STDOUT
output = subprocess.check_output('ls')
print('the output is: ')
print(output)
import subprocess
# what if we wanted to call other args? call it using call/checkoutput with a tuple or list passed through
output = subprocess.check_output(['ls', '-l'])
# what if we wanted to command directly to the UNIX command line?
import subprocess
#in order to use special characters like the wildcard, we need to talk to the shell directly
# instead of a list of arguments, we put in a list of commands that directly talk to the shell
output = subprocess.check_output('ls *.py', shell=True)
#shell = True can be a security risk if you're taking any input from other users