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Adding Core Data to existing iPhone project
... core data to an existing iPhone project, but I still get a lot of compile errors:
13 Answers
...
Fully custom validation error message with Rails
Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following:
17 Answer...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...say you have something like the following:
stepOne()
.then(stepTwo, handleErrorOne)
.then(stepThree, handleErrorTwo)
.then(null, handleErrorThree);
To better understand what's happening, let's pretend this is synchronous code with try/catch blocks:
try {
try {
try {
var a...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...write many queries, for example when you try to debug something)
it's more error prone because you can suddenly get too many or too few results when something goes wrong in the code which manages the connection table.
That's why I rarely recommend this approach.
...
PHP parse/syntax errors; and how to solve them
Everyone runs into syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as:
...
How to send a custom http status message in node / express?
...'User already exists.');
Handle at Client side
Angular:-
$http().....
.error(function(data, status) {
console.error('Repos error', status, data);//"Repos error" 500 "User already exists."
});
jQuery:-
$.ajax({
type: "post",
url: url,
success: function (data, text) {
},
e...
try {} without catch {} possible in JavaScript?
I have a number of functions which either return something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error.
...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...m trying to select data from a MySQL table, but I get one of the following error messages:
31 Answers
...
Use ASP.NET MVC validation with jquery ajax?
...ata.ModelState;
if (!modelState.IsValid)
{
var errorModel =
from x in modelState.Keys
where modelState[x].Errors.Count > 0
select new
{
key = x,
...
Error handling in getJSON calls
How can you handle errors in a getJSON call? Im trying to reference a cross-domain script service using jsonp, how do you register an error method?
...