I have an object and for all keys that have a null value I want to replace this null with an empty string (or a dash in my case)?
For example
Obj = {
key1: null,
key2: null,
key3: true,
...
key_n: null
}
Turns into
Obj = {
key1: "-",
key2: "-",
key3: true,
...
key_n: "-"
}
This will work.
const Obj = {
key1: null,
key2: null,
key3: true,
key_n: null
};
for (const key in Obj) {
const val = Obj[key];
if (val === null) {
Obj[key] = "-";
}
}
console.log(Obj);const obj = {
key1: null,
key2: null,
key3: true,
key_n: null
};
Object
.entries(obj)
.forEach(function ([key, value]) {
if (value === null) {
this[key] = '-';
}
}, obj); // make use of `forEach`'s `thisArg` parameter.
console.log({ obj });You just have to match whether a key's corresponding value is null or not , if yes then change it to underscore.
Obj = {
key1: null,
key2: null,
key3: true,
key_n: null
}
Object.keys(Obj).map(key=>{
if(!Obj[key])Obj[key] = "_"
})
console.log(Obj)