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    1.0.1 • Public • Published

    Path to property

    Repo: https://github.com/jovelromeo/path-to-property


    This tiny library consists of only one exported method wich accepts an object and a string.

        const pathToProperty = requre('path-to-property');
        const obj = {
            redjar: {
                'countries.info': {
                        { country:'ARG', values: ['good', 'peaple'] },
                        { country:'SV', values: ['also','good', 'peaple']}
        const path = 'redjar."conutries.info".[country:ARG].values.0';
        const desiredProperty = pathToProperty(obj, path); 
        console.log(desiredProperty); // 'good'

    The path would be equivalent to doing as follows

        obj.redjar['countries.info'].find(x=>x.country === 'ARG').values[0] // 'good'

    Path posibilities

    The path string is defined with the properties key (or array find key:value) separated by a colon.

    • Keys with dots: If a key contains a colon wrap it into double or single quotes.
        path = 'child1."child1.2".name';
        obj = {
            child1: {
                'child1.2': {
                    name: 'Rojo'
        const desiredProperty = pathToProperty(obj, path); // obj.child1['child.2'].name
        console.log(desiredProperty); // Rojo
    • Condition for find in an array: If you need to find an object you must provide a key and a values to find. If the value is a number or a boolean it is converted to string before the comparison.
        path = 'child1.[id:child1.2].name';
        obj = {
            child1: [
                    id: 'child1.2',
                    name: 'Rojo'
        const desiredProperty = pathToProperty(obj, path); 
        // obj.child1.find(x=>x.id==='child1.2').name
        console.log(desiredProperty); // Rojo
      you can also use quotes for the filter key as 'n.id' wich is executed this way: [..] .filter(x=>x['n.id'] === <value>) [..]
      if you dont use quotes and the key has dots as in n.id it wil executed this way: [..] .filter(x=>x.n.id === <value>) [..]

    A simple alternative

    *Need a simpler alternative? Use this:

        const obj = {/*your data*/};
        const keys = path.split('.');
        let desiredProp = obj;
        for (const key of keys) {
            desidedProp = desiredProp[key];
        console.log(desiredProp); // path value

    Fell free to add issues or make some improvements.

    Hope this can help, probably for defining the same logic to find a value from different data providers and structures.

    Buy me coffe:

    • BTC: 3PXTqzvQFucGMy71vmyYFwnTKmQCAYKozj
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    npm i advanced-get-value

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