const toCamelCase = require('to-camel-case'); module.exports = function applyParams(str, params, prefix) { return str.replace( /\$\{(\w+)\}/g, (pattern, param) => { const name = toCamelCase(prefix) + '_' + param; return params[param] ? `this.getResources().getString(R.strings.${name})` : null; } ); };