How to use the nightwatch-api.client.getText function in nightwatch-api

Then(/^the last word of the phrase should be the one word in the word list$/, async function () {
    let phrase = "";
    let wordRow = "";

    await browser.getText("#phrase", function (result) {
        phrase = result.value
    })

    let lastWord = phrase.trim().split(" ").pop()
    expect(lastWord.length).to.be.gt(0)

    await browser.getText("#word_table > tr", function (result) {
        wordRow = result.value
    })
    let columns = wordRow.trim().split(" ")
    let word = columns[11]

    expect(word).to.not.equal("")
    expect(word).to.not.equal("undefined")
    expect(word).to.equal(lastWord)
});

Then(/^the last word of the phrase should be the one word in the word list$/, async function () {
    let phrase = "";
    let wordRow = "";

    await browser.getText("#phrase", function (result) {
        phrase = result.value
    })

    let lastWord = phrase.trim().split(" ").pop()
    expect(lastWord.length).to.be.gt(0)

    await browser.getText("#word_table > tr", function (result) {
        wordRow = result.value
    })
    let columns = wordRow.trim().split(" ")
    let word = columns[11]

    expect(word).to.not.equal("")
    expect(word).to.not.equal("undefined")
    expect(word).to.equal(lastWord)
});
Then(/^the input field number (\d+) and onward should be disabled$/, async function (firstDisabled) {