i was seeking for a solution like this in stackoverflow and in google but this is the idea
a = {
b: (conditionB? 5 : undefined),
c: (conditionC? 5 : undefined),
d: (conditionD? 5 : undefined),
e: (conditionE? 5 : undefined),
f: (conditionF? 5 : undefined),
g: (conditionG? 5 : undefined),
};
but i dont understand this... it doesnt work in nodejs i want to create an object a with many objects inside but if that objects are in the form send by the client
maybe what you want can be done using the array index notation?
a= {};
if(bla) a.b = "go";
This can be achieved in 2 ways.
Either you use an if sentence for each conditional property as such:
var a = {};
if(conditionb){
a.b = 5;
}
Or if you don't want to create an if sentence for every property then you assign properties using the notation you presented in the question and then remove unnecessary ones in a loop:
a = {
b: (conditionB? 5 : undefined),
c: (conditionC? 5 : undefined),
d: (conditionD? 5 : undefined),
e: (conditionE? 5 : undefined),
f: (conditionF? 5 : undefined),
g: (conditionG? 5 : undefined),
};
for(var i in a){
if(a[i] === undefined){
delete a[i];
}
}
Try this:
var a = {};
if(conditionB) {
a['b'] = 5;
}
or
if(conditionB) {
a.b = 5;
}
You Can try this,
var dog = d;
var myObject = {};
myObject['a']=(1<2)? 1 : 2;
myObject['b']=(1<2)? 1 : 2;
myObject['c']=(1<2)? 1 : 2;
myObject[dog]=(1<2)? 1 : 2;
Just in case you are creating the properties dynamically.
You can do this with ES2018:
a = {
...(conditionB? { b : 5} : {}),
...(conditionC? { c : 5} : {}),
};
