I want to update my object values with some predefined value like 5.
Here is my object,
let data = {"a":1,"b":2,"c":3,"d":5}
Expected Output;
let data = {"a":5,"b":10,"c":15,"d":25}
Here is my attempt:
Object.keys(data).map(key => data[key] *= 5 )
Just loop through all the new object's key and update it to existing object.
var obj = {"a":1,"b":2,"c":3,"d":5,"f":9,"g":11,"h":21}
var newObj = {"a":5,"b":10,"d":20,"h":25}
let keys = Object.keys(newObj)
keys.map(x=>{
obj[x] = newObj[x]
})
console.log(obj)Multiply that values with 5:
let data = {"a":1,"b":2,"c":3,"d":5};
Object.keys(data).forEach(key => data[key] *= 5);
console.log(data);Using Object.Entries()
let data = {"a":1,"b":2,"c":3,"d":5};
Object.entries(data).forEach(([key, val]) => data[key] = val*5);
console.log(data);Try with Object.entries():
The
Object.entries()method returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by afor...inloop (the difference being that a for-in loop enumerates properties in the prototype chain as well) .
let data = {"a":1,"b":2,"c":3,"d":5}
data = Object.entries(data).map(k => ({[k[0]]: k[1] * 5}))
console.log(data)