Explaining a portion of JavaScript function

Question

Can any body explain this portion (url ? "/" + url : "") in the following function:

 function sendAjaxRequest(httpMethod, callback, url) {
 $.ajax("/api/web" + (url ? "/" + url : ""), {
 type: httpMethod, success: callback
 });
 }

as I cann't understand how it interpreted by calling wrapper function and get the intended URL value,

This is a ternary operator: `a ? b : c` which reads if `a` is true, then return `b` otherwise `c` — kvantour, Dec 08 '18 at 16:48
Possible duplicate of [JavaScript ternary operator example with functions](https://stackoverflow.com/questions/10323829/javascript-ternary-operator-example-with-functions) — angry_gopher, Dec 08 '18 at 18:58

score 2 · Accepted Answer · answered Dec 08 '18 at 16:46

2

res = "/api/web" + (url ? "/" + url : "" is equal to the following:

if (url) // if url is not empty
{
    res =  "/api/web" + "/" + url;
}
else 
{
    res =  "/api/web" + ""
}

answered Dec 08 '18 at 16:46

pouyan

1 Answers1