How can we set zoom level in selenium/protractor i.e zoom to 90%

Question

How can we set zoom level in selenium/protractor zoom page size to 90 percent etc

Answer 1

For Selenium:

((JavascriptExecutor)driver).executeScript("document.body.style.zoom='90%';");

For Protractor:

browser.executeScript("document.body.style.zoom='90%';");