Query: My String contains only numbers, and I want to return the number it represents. For example, given the string “1234” the result should be the number 1234. In this post, I’ll convert …
How to convert a String to int in Java? Learn MoreQuery explained: I know that I can do: I can also do this: But if I want to do the same thing inside two different exceptions, the best I can …
How to catch multiple exceptions in one line in Python? Learn MoreQuery: All I want is to get the website URL. Not the URL as taken from a link. On the page loading, I need to be able to grab the …
How to get the current URL with JavaScript? Learn MoreSample query: I’d like to round at most 2 decimal places, but only if necessary. Input: Output: How can I do this in JavaScript? How to round off to 2 decimal …
How to round off to 2 decimal places in javascript? Learn MoreSample query: Is there a simple string.Empty available in JavaScript, or is it just a case of checking for “”? How to check empty string in JavaScript? If you just want to check …
How to check for an empty, undefined, or null string in JavaScript? Learn MoreQuery: How can I list all files of a directory in Python and add them to a list? How to list all files of a directory in Python? Method #1: os.listdir() will …
How to list all files of a directory in Python? Learn MoreQuery: How do I check if a particular key is present in a JavaScript object or array? If a key doesn’t exist, and I try to access it, will it …
How to check if a key exists in a JavaScript object? Learn MoreQuery: How can an int be cast to an enum in C#? How to cast int to enum in C#? From an int: From a string: Update: From number you can also Answer #2: …
How to cast int to enum in C#? Learn MoreQuery explained: If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going …
How to iterate over a Map in Java? Learn MoreQuery explained: I am a bit puzzled by the following code: What I don’t understand is the key portion. How does Python recognize that it needs only to read the key from …
How to iterate over dictionaries using ‘for’ loops in Python? Learn MoreThe following code is the solution: Caveats follow Note that while this is perhaps the cleanest way to answer the question as asked, index is a rather weak component of the list API, and I …
How to find the index of an item in a list in Python? Learn MoreI have an array that is initialized like: I would like to convert this array into an object of the ArrayList class. How to create ArrayList from array in Java? Short answer: …
How to create ArrayList from an array in Java? Learn MoreQuery: After an AJAX request, sometimes my application may return an empty object, like: How can I check whether that’s the case? How to Check if Object is Empty in …
How to Check if an Object is Empty in JavaScript? Learn MoreIn SQL Server, it is possible to insert rows into a table with an INSERT.. SELECT statement: Is it also possible to update a table with SELECT? I have a temporary table containing the values and …
How to UPDATE from a SELECT in SQL Server? Learn MoreShort & Snazzy: A unary operator like plus triggers the valueOf method in the Date object and it returns the timestamp (without any alteration). Details: On almost all current browsers you can use Date.now() to get the UTC …
How to get a timestamp in JavaScript? [Answered] Learn MoreSample query: If you have a java.io.InputStream object, how should you process that object and produce a String? Suppose I have an InputStream that contains text data, and I want to convert it to a String, …
How to convert an InputStream into a String in Java? [Answered] Learn More