const foo = { 'ONE':1, 'TWO':2 }; const mapMultiplier = (params, multiplier) => { params.ONE = params.ONE * multiplier params.TWO = params.TWO * multiplier return params; }; console.log(mapMultiplier(foo, 2)); console.log(mapMultiplier(foo, 3)); console.log(mapMultiplier(foo, 4)); // Value of foo { 'ONE': 1, 'TWO': 2 } console.log('foo: ', foo);
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