Question

90

Javascript - Iterate over deep nested object and change certain unknown values

rated 0 times [ 94] [ 4] / answers: 1 / hits: 16441 / 8 Years ago, tue, july 26, 2016, 12:00:00

I have an object with an unknown number of levels and types (array, object, string), here is an example:

var data = {

    ffs: false,

    customer: {

        customer_id: 1544248,

        z_cx_id: '123456',

    },

    selected_items: {

        '3600196': [{

            id: 4122652,

            name: 'Essential Large (up to 8'x10')',

            selected: true

        }]

    },

    service_partner: {

        id: 3486,

        name: 'Some String',

        street: '1234 King St.',

    },

    subject: 'Project-2810191 - Orange Juice Stain (Rug)',

    description: 'Product Type: nnIssue: (copy/paste service request details here)nnAction Required:',

}

I have to loop through every property using plain javascript and sanitize each string that has a ' to have '' (for use in a PostGres Query), I change it with the following code:

val = val.replace(/'/g, '');

And I can loop through the object and display them with this, although this may not be the best solution:

function iterObj(obj) {

  for (var key in obj) {

    console.log(key + ': ' + obj[key]);

    if (obj[key] !== null && typeof obj[key] === object) {

      // Recurse into children

      iterObj(obj[key]);

    }

  }

}



iterObj(data);

The problem is that I don't know how to actually do the sanitization part and update the original data array since this is going in circles.

I found plenty of people asking similar questions but couldn't quite get their answers to work in my case.

Any help is appreciated.

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3 Years ago

answered 8 Years ago raveno · Accepted Answer

You could check for an object and call the recursion again.

function iter(o) {

    Object.keys(o).forEach(function (k) {

        if (o[k] !== null && typeof o[k] === 'object') {

            iter(o[k]);

            return;

        }

        if (typeof o[k] === 'string') {

            o[k] = o[k].replace(/'/g, '');

        }

    });

}



var data = { ffs: false, customer: { customer_id: 1544248, z_cx_id: '123456' }, selected_items: { '3600196': [{ id: 4122652, name: 'Essential Large (up to 8'x10')', selected: true }] }, service_partner: { id: 3486, name: 'Some String', street: '1234 King St.' }, subject: 'Project-2810191 - Orange Juice Stain (Rug)', description: 'Product Type: nnIssue: (copy/paste service request details here)nnAction Required:' };



iter(data);

console.log(data);