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Does Javascript pass by reference? [duplicate]
Does Javascript pass by references or pass by values? Here is an example from Javascript: The Good Parts . I am very confused about my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the func...
Why C# implements methods as non-virtual by default?
Unlike Java, why does C# treat methods as non-virtual functions by default? Is it more likely to be a performance issue rather than other possible outcomes?
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Remove portion of a string after a certain character
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$variable = substr($variable, 0, strpos($variable, "By"));
In plain english: Give me the part of the string starting at the beginning and ending at the position where you first encounter the deliminator.
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How to select a drop-down menu value with Selenium using Python?
...le:
from selenium import webdriver
b = webdriver.Firefox()
b.find_element_by_xpath("//select[@name='element_name']/option[text()='option_text']").click()
You can read more in:
https://sqa.stackexchange.com/questions/1355/unable-to-select-an-option-using-seleniums-python-webdriver
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How can I multiply and divide using only bit shifting and adding?
...y in terms of adding and shifting you want to decompose one of the numbers by powers of two, like so:
21 * 5 = 10101_2 * 101_2 (Initial step)
= 10101_2 * (1 * 2^2 + 0 * 2^1 + 1 * 2^0)
= 10101_2 * 2^2 + 10101_2 * 2^0
= 10101_2 << 2 + 10101_2 << 0 (De...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
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warning: LF will be replaced by CRLF.
Depending on the editor you are using, a text file with LF wouldn't necessary be saved with CRLF: recent editors can preserve eol style. But that git config setting insists on changing those...
Simply make sure t...
WebDriver: check if an element exists? [duplicate]
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You could alternatively do:
driver.findElements( By.id("...") ).size() != 0
Which saves the nasty try/catch
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How to select an option from drop down using Selenium WebDriver C#?
...ort.UI;
// select the drop down list
var education = driver.FindElement(By.Name("education"));
//create select element object
var selectElement = new SelectElement(education);
//select by value
selectElement.SelectByValue("Jr.High");
// select by text
selectElement.SelectByText("HighScho...
How do I pass a variable by reference?
The Python documentation seems unclear about whether parameters are passed by reference or value, and the following code produces the unchanged value 'Original'
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Count number of records returned by group by
How do I count the number of records returned by a group by query,
13 Answers
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