startswith

jQuery – How to select value by attribute name starts with

If you want all data-* attributes, you can iterate through jq data object: $(‘.slide’).each(function(){ for(data in $(this).data()) console.log(data); // returns confirmID so element as an attribute `data-confirmID` }); But this data object can contains other keys which aren’t attribute, setted for example by some plugins. EDIT To get all kinds of attribute to “starts with”, … Read more

How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?

Use rfind overload that takes the search position pos parameter, and pass zero for it: std::string s = “tititoto”; if (s.rfind(“titi”, 0) == 0) { // pos=0 limits the search to the prefix // s starts with prefix } Who needs anything else? Pure STL! Many have misread this to mean “search backwards through the … Read more

Why does “abcd”.StartsWith(“”) return true?

Yes – because it does begin with the empty string. Indeed, the empty string logically occurs between every pair of characters. Put it this way: what definition of “starts with” could you give that would preclude this? Here’s a simple definition of “starts with” that doesn’t: “x starts with y if the first y.Length characters … Read more