I have a function that should take as an argument of the object and return a string
The code I wrote.
function check(obj) {
return obj.toString();
}
6 Answers
If your object is like
const obj = { name: "John", age: 30, city: "New York" };
Use the JavaScript function JSON.stringify() to convert it into a string.
Like this JSON.stringify(obj).
then you will get this string:
"{"name":"John","age":30,"city":"New York"}"
1 Comment
Vikings Dood
How is this not marked as the answer?
let toString = ({name, age, language}) => `name: ${name}, age: ${age}, language: ${language}`;
const david = { name: 'David', age: 22, language: 'PHP' };
console.log(toString(david));If you'd like to be more generic:
let toString = obj => Object.entries(obj).map(([k, v]) => `${k}: ${v}`).join(', ');
const david = { name: 'David', age: 22, language: 'PHP', favoriteFood: 'blue' };
console.log(toString(david));
2 Comments
junvar
You'll need to provide more details. You should also look into how to debug code.
Apply this technique if you want to convert an object to a string without applying the JSON.stringify() function
let obj = {
x: 1,
y: 'HelloWorld',
toString: function(){
return `${this.x}, ${this.y}`;
}
};
let result = String(obj);
console.log(result, 'type --> ', typeof result);
Comments
1% of the time, you might need something besides json. Almost always you need json, but...
Sometimes you need a JavaScript string, not json. Like when you're filling in a graphql template.
It's just like the json string, but it doesn't have quotes around the attributes.
export const toJavascriptString =
(obj: any) => JSON.stringify(obj).replace(/\"([\w_-]+?)\"\:/g, '$1:')
var obj = {a: 'wsd', b: 2}
var str = JSON.stringify(obj).replace(/\"([\w_-]+?)\"\:/g, '$1:')
console.log(str)
{a:"wsd",b:2}
1 Comment
countzero
This is a good solution. But in a javascript
Object you can't have a kebab-case key, unless it's in quotes. So if someone is looking to display an Object in a js syntax highlighter, just remove the dash from the char class, i.e.: [\w_] and you're good to go. (Also format with tabs using something like stringify(obj, null, 4))function check(obj) {
console.log(typeof obj) // object
let res = JSON.stringify(obj)
console.log(typeof res) // string
return res;
}
let example = {name: "John"}
console.log(check(example)) // {"name":"John"}
Comments
var data = {name: "john", age: 30}
var str = JSON.stringify(data) // "{\"name\":\"john\",\"age\":30}"
var btoas = btoa(str) // "eyJuYW1lIjoiam9obiIsImFnZSI6MzB9"
var atobs = atob(btoas) // "{\"name\":\"john\",\"age\":30}"
var myRealData = JSON.parse(atobs) //{name: "john", age: 30}
` BOYAA !! `
3 Comments
perona chan
it's just for testing string values. sometimes object code is changed to
btoa can work when changed to atob the value is [Object object]perona chan
atob and btoa are available in the browser as are the alert codes.perona chan
object to string is needed, for example to store browser cookies. code works when using
btoa(JSON.stringify(code))
JSON.stringify(object)--> BOOM ! -> you got a stringactual.includes('"name": "Ant", "age": 28,.. etc)