Parsing a value of a variable onto another variable in javascript

Question

How can I parse the value of the constant named currentTab to that of the one named tabToActivate?

function panel(event) {
    const tab = event.currentTarget.closest(".tab");
    const container = tab.closest(".login-sign");
    const currentTab = event.currentTarget.dataset.forTab;
    const tabToActivate = container.querySelector(".tabcontent[data-tab ='${currentTab}']");
    
    console.log(tabToActivate)//outputs null perhaps due to improper parsing
}

question from:https://stackoverflow.com/questions/65916693/parsing-a-value-of-a-variable-onto-another-variable-in-javascript

Answer 1

Though your question is not too clear but i think i got it. We can only pass a variable in a string by using back ticks not quotes;

const tabToActivate = container.querySelector(`.tabcontent[data-tab="${currentTab}"]`);