I'm writing JavaScript code in which I want to replace a string in JSON object and my code is as below.
var obj = {
"name": "name is $name",
"work": "$name is doctor",
"maritial status": "unmarried"
};
obj = Object.keys(obj).map(function(key, index) {
return (obj[key].includes('$name')) ? obj[key].replace('$name', 'John'): obj[key];
});
console.log(obj);Here I want to replace $name with John and print the JSON, but unfortunately, this is printing only the values like below instead of the whole JSON.
["name is John", "John is doctor", "unmarried"]
Where I am going wrong and how can I fix this?
You keep mentioning JSON but what you have is a JavaScript object. JSON is a string. So it would be much easier for you to keep it as a string, do a simple replace on the name, and then parse it to an object.
const json = '{"name":"name is $name","work":"$name is doctor", "maritial status":"unmarried"}';
const updated = json.replaceAll('$name', 'John');
console.log(JSON.parse(updated));If you want to get a transformed object as the result, either assign the changed value to the original object:
var obj = {
"name": "name is $name",
"work": "$name is doctor",
"maritial status": "unmarried"
};
Object.keys(obj).forEach(function(key) {
if (obj[key].includes('$name')) {
obj[key] = obj[key].replace('$name', 'John');
}
});
console.log(obj);Or use Object.entries and Object.fromEntries to map to a new object:
var obj = {
"name": "name is $name",
"work": "$name is doctor",
"maritial status": "unmarried"
};
const newObj = Object.fromEntries(
Object.entries(obj).map(([key, val]) => [key, val.replace('$name', 'John')])
);
console.log(newObj);You can use Object.entries method or other object methods to solve your problem one of them might be ...
let obj = {
"name": "name is $name",
"work": "$name is doctor",
"maritial status": "unmarried"
};
Object.entries(obj).forEach(item => {
if ((obj[item[0]].includes('$name'))) {
item[1] = item[1].replace("$name", "John");
obj[item[0]] = item[1];
}
})
console.log(obj);