converting object's value number to string not working properly

Question

I have situation about converting number to string. In the function below. I am iterating the objects and trying to change value type of plan_price. it's working when I do console.log()

    bestPlanArrange(bridals){
        let plans = [];
        bridals.filter(item => {
            item.plans.filter(plan => {
                plans.push(plan);
            });
        })
        let obj = {}
        let planArr = [];
        plans.filter(item => {
            item.plan_price.toString()
            console.log(item.plan_price) // doesn't listen the code above not working. 
            console.log(item.plan_price.toString()) // it's working like this.
            planArr.push(item) // I want to push after covert.
        })
        if (planArr[0] != null && plans[0].plan_price != null) {
            obj = planArr[0];
        }
        return obj;
    },

Do I missing something or doing something wrong here?

Why are you calling filter when the function doesn't return a true/false value and you're not using the result? It seems like you're using it when you really mean forEach. — Barmar
– Barmar, Commented Sep 19, 2019 at 1:41
Please provide an minimal reproducible example. This is not easy to test without sample input and a runnable snippet. — random_user_name
– random_user_name, Commented Sep 19, 2019 at 1:41
And if you're using it to create a new array with values for each element of the original array, you should use .map(). — Barmar
– Barmar, Commented Sep 19, 2019 at 1:43
let planArr = plans.map(item => item.plan_price.toString()) — Barmar
– Barmar, Commented Sep 19, 2019 at 1:43

Robby Cornelissen · Accepted Answer · 2019-09-19 01:41:15Z

4

Calling toString() doesn't change the value in place. You have to assign the result back to a variable:

item.plan_price = item.plan_price.toString()

answered Sep 19, 2019 at 1:41

Robby Cornelissen

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