Checking button text matches a certain string in Nightwatch.js - selenium

Question

I'm having a heck of a time trying to write a test where I check that text on a button matches a certain string. I tried ".valueContains", ".attributeContains" and got blank or null, and I've tried getText(), but that only seems to return an object.
I feel like it's something obvious I'm missing, so any help would be appreciated!

Answer 1

Based on what you have written so far in your question, I am wondering if there is there a reason you cannot use .containsText?
.waitForElementVisible('.yourclass', this.timeout)
.assert.containsText('.yourclass', 'Text of Button you expect to match')
http://nightwatchjs.org/api#assert-containsText

Answer 2

Without actually looking at the code its little difficult to predict whats going on. However all of the methods in selenium return a promise, so you need to wait for it to resolve.
function async getTextOfButton() {
const element = await driver.findElement(By.className('item-class'));
const text = await element.getText();
}
If you are not using async/await you could do
driver.findElement(By.className('item-class')).then(function(element) {
element.getText().then(function(text) {
console.log(text);
});
});