how to pass language string to function in checkout page

[ahmadsaadkhan]

Hello, I want to pass below language option below to function renderPaymentform how can add this.
let wpwlOptions = {
locale: "ar",
numberFormatting:false
}

renderPaymentform = () => {
console.log('Loading ')
const script = document.createElement("script");

    script.src = `https://test.oppwa.com/v1/paymentWidgets.js?checkoutId=${this.state.checkoutId}`;
    script.async = true;

    document.body.appendChild(script);

    const form = document.createElement("form")
    form.action = "http://localhost:3000/result";
    form.setAttribute("class", "paymentWidgets");
    form.setAttribute("data-brands", "VISA MASTER AMEX")
    document.body.appendChild(form);
}