async homeApi(_source: any, _args: any) {
const body = {
door: _args.door,
window: _args.window
};
}
I have a typescript code like above where I create a JSON Object called body using door and window arguments.
Typically the body should be:
{
door: 3,
window: 4
}
What I want is if _args.door is empty/blank, the body should be
{window: 4}
It should not be:
{
door: '',
window: 4
}
I guess what you want to do is to filter out the fields that are undefined or empty. You could do this:
var data = {
a: undefined,
b: "foo"
}
Object.keys(data).forEach(i=>{
if(!data[i] && data[i] !==0) delete data[i]
})
console.log(data)
0 as well, which seems to be a valid value to OP.
0 is a fasly value. Let me update that.
undefined will already be stripped when encoding to JSON, so the loop is not needed.null or '' (all falsy except 0) need to be accounted for as well.You can use object assign to get rid of the undefined object. However, for an empty value, you need to check and delete it. You can check below code.
const _args = {
window: 4
};
const _args1 = {
door: '',
window: 4
};
const _args3 = {
door: 3,
window: 4
};
homeApi = (_args2) => {
const bod = { ..._args2};
if(bod['door'] === ''){
delete bod['door'];
}
console.log(bod);
}
homeApi(_args);
homeApi(_args1);
homeApi(_args3);One way would be creating object by taking entries and filtering according to your conditions:
const data = {
a: undefined,
b: "foo",
k:0
};
const result = Object.fromEntries(Object.entries(data).filter(([k,v])=>v || v==0));
console.log(result);You can filter out the fields that are undefined or null as follows:
const data = {
a: "bar",
b: undefined,
c: "faz",
d: null,
};
const result = Object.keys(data).reduce((obj, key) => {
if (data[key] !== null && data[key] !== undefined) obj[key] = data[key];
return obj;
}, {});
console.log(result); // { a: 'bar', c: 'faz'}
door: _args.doornot already do what you want? If it's undefined, it'll stay undefined. It won't just magically conjure a value out of nowhere.for...inanddeletethe properties you want according to that condition (btw,undefinedis not"").