大约有 30,000 项符合查询结果（耗时：0.0352秒） [XML]
How to get the nth occurrence in a string?
...
const string = "XYZ 123 ABC 456 ABC 789 ABC";
function getPosition(string, subString, index) {
return string.split(subString, index).join(subString).length;
}
console.log(
getPosition(string, 'ABC', 2) // --> 16
)
...
Check if a string contains a string in C++
...
123
You can try using the find function:
string str ("There are two needles in this haystack.");
...
Check if character is number?
...if you want to work directly on your string you can use regexp like this:
function is_numeric(str){
return /^\d+$/.test(str);
}
share
|
improve this answer
|
follow
...
remove all variables except functions
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
WebSockets vs. Server-Sent events/EventSource
...to note:
I have had issues with websockets and corporate firewalls. (Using HTTPS helps but not always.)
See https://github.com/LearnBoost/socket.io/wiki/Socket.IO-and-firewall-software
https://github.com/sockjs/sockjs-client/issues/94
I assume there aren't as many issues with Server-Sent Events. B...
How can I match on an attribute that contains a certain string?
...wered Mar 27 '11 at 12:58
surupa123surupa123
5,15911 gold badge1212 silver badges44 bronze badges
...
Does .NET have a way to check if List a contains all items in List b?
.../ </summary>
/// <remarks>Needs .NET 3.5 or greater. Source: https://stackoverflow.com/a/1520664/1037948 </remarks>
/// <typeparam name="T">list value type</typeparam>
/// <param name="containingList">the larger list we're checking in</param>
/// <param...
How to remove/change JQuery UI Autocomplete Helper text?
... answered Oct 26 '12 at 17:23
TK123TK123
19.5k4444 gold badges134134 silver badges183183 bronze badges
...
Ruby : How to write a gem? [closed]
...
This is how I usually create and release Gems:
Sign-up for https://github.com
Sign-up for https://rubygems.org
$ gem install ore rubygems-tasks rdoc rspec
$ mine awesome_gem
cd awesome_gem/ and edit the README.rdoc and awesome_gem.gemspec, write code in lib/awesome_gem/ and adding RS...
How to write string literals in python without having to escape them?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...