how to generate dynamic asserts in nodejs soda - selenium

Question

I have below code in nodejs for selenium using soda script.
If you see my script below, look for verifyData()
There is row testing happening for fixed columns values. I want to generate these asserts dynamically, only row number will vary column will always same, how to achieve this. I can pass row number to this methods.
Second thing, if you see with assert I used function(), can we capture err/assertfail here?
var browser = soda.createClient({
.....
});
browser
.chain
.session()
.setSpeed(speed)
.setTimeout(2000)
.open('/')
.and(login('dev#dev.com', 'x1212GQsdtpS'))
.and(verifyData())
.end(function(err){
console.log('error');
});
function login(user, pass) {
return function(browser) {
browser
.click('css=a#loginButton')
.type('css=input.input-medium.email',user)
.type('css=input.input.pwd',pass)
.clickAndWait('css=a.btn.login')
.assertTextPresent('Clients',function(){ console.log('logged in ok')})
}
}
function verifyData() {
return function(browser) {
browser
//Row 1 testing
.assertText('css=div.keyYears table tbody tr:nth-child(1) td:nth-child(3)','some text',function(){ console.log('looks good')})
.assertText('css=div.keyYears table tbody tr:nth-child(1) td:nth-child(5)','some text')
.assertText('css=div.keyYears table tbody tr:nth-child(1) td:nth-child(6)','some text')
.assertText('css=div.keyYears table tbody tr:nth-child(1) td:nth-child(7)','some text')
//Row 2 testing
.assertText('css=div.keyYears table tbody tr:nth-child(2) td:nth-child(3)','some text1',function(){ console.log('looks good')})
.assertText('css=div.keyYears table tbody tr:nth-child(2) td:nth-child(5)','some text1')
.assertText('css=div.keyYears table tbody tr:nth-child(2) td:nth-child(6)','some text1')
.assertText('css=div.keyYears table tbody tr:nth-child(2) td:nth-child(7)','some text1')
}
}

Answer 1

I got the solution, we have to do something like below:
browser
.chain
.setSpeed(200)
.session()
.open('/')
.click("id=save")
.focus(editor)
.and(function (browser) {
for (var i = 0; i < 10; i++) {
browser.keyDown(editor, '\\40')
}
})
...