How to select a drop down using protractor? - protractor

Question

Can any one help me on how to select a drop down in protractor.
Page Object code
function selectDropdownbyNum(element, optionNum) {
if (optionNum) {
element.all(by.tagName('option')).then(function(options) {
browser.sleep('5000');
options[optionNum].click();
console.log('Desired value selected');
});
}
}
var pageName= function(){
this.selectTier = async function(){
var Tiers = element(by.xpath(/*element value*/));
console.log('select silver method');
browser.sleep(5000);
selectDropdownbyNum(Tiers,2);
console.log('value selected');
};
};
module.exports = new pageName();
And Spec is as follows
it('select Silver Tier',async function(){
browser.ignoreSynchronization = true;
console.log('Executing silver tier selection test case');
await pageName.selectTier()
});
I have tried the above code. I am able to print all the values of the drop down, but am unable to click.
Is their any mistake in the above code.I can print the 'Desired value selected'. But value was not selected

Answer 1

May this will help you for selecting option
element(by.cssContainingText('option','Option value')).click();
or
element(by.id('id')).sendKeys("Values from option");
this worked for me

Answer 2

Try:
var Tiers = element(by.xpath(dropDownValue));
Tiers.click();
selectDropdownbyNum(element, optionNum) {
if (optionNum) {
element.all(by.tagName('option')).then(function(options) {
options[optionNum].click();
});
}
}
selectDropdownbyNum(Tiers,4)
Note:
avoid using Xpath example use :
element(by.css('select[formcontrolname="any value according to situation"]'));

Answer 3

I haven't tested it, but I suppose it's because of the nested promise you are using inside the for loop. The nature of the promise is to be async, and the for loop is synchronous, which results in the loop complete whyle the very first promise items[i].getText().then get's resolved and that's why your click didn't succeed. If you don't need to know the option names, then just remove the nested promise items[i].getText() and just execute the click in the loop.