Selenium Wait for page to load/Element

show me the code of wait statements.

1. Implicit wait:
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);

2. Javascript wait for the element ready state
((JavascriptExecutor)driver).executeScript("return document.readyState").equals("complete");

3. Thread.sleep(6000) // this will work irrespective of the page load.

4. WebElement element = (new WebDriverWait(getDriver(), 30)).until(ExpectedConditions.visibilityOfElementLocated(By.cssSelector("input#name")));

//This will through exception if the element is not found

My application is build in angular js, Please suggest me which is the best approach to follow handling synchronisation.

Thanks

You can make a custom function customWait()
and call it

public void customWait(String time){
Thread.sleep(time);
}

Is there any solution other than thread.sleep?