webix.ajax().headers({
"Content-type": "application/json"
}).post("someurl", JSON.stringify(data)).then(function (data) {
data = data.json();
// here is some error
// ...
}).fail(function (request) {
// or might be here
// ...
});
If there are any errors in “then”, “fail” functions It’s quite difficult to fix it.
“console.log” will be empty.
I have to use try-catch construction in each method to see errors. It’s superfluously.
Actually you need not use try-catch.
If you will have an error in any of “then” blocks, the error will be catched automatically and “fail” block will be executed.
If you want to catch a error in fail section, you can add one more “fail” block
webix.ajax("http://webix.com").then(function(res){
webix.message("done");
throw "some error";
}).fail(function(){
webix.message("error in then section catched");
throw "fail error";
}).fail(function(){
webix.message("error in fail section catched");
})
Also, if you are using webix_debug.js, all non-processed errors will be processed in normal way ( registered in js console, stop debugger when you are using dev. tools, etc. )
If you are using webix.js, non-processed errors in “then” and “fail” blocks will be caught silently
Also, if you are using webix_debug.js, all non-processed errors will be processed in normal way ( registered in js console, stop debugger when you are using dev. tools, etc. )
I’m using webix_debug.js but don’t see any error in the console if I call non-existent functions (e.g. $$('chart').showOverlay()). Only if I put a breakpoint on that line, does Webix stop somewhere in function fire() {...}.