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How to create a new database using SQLAlchemy?
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I get this error when trying this exact codeblock: psycopg2.OperationalError: fe_sendauth: no password supplied. When using "postgres://test:abc123@localhost:5432/test" I get psycopg2.OperationalError: FATAL: password authentication fa...
Why are const parameters not allowed in C#?
..." locals and parameters that would be initialized once, and a compile-time error to change in the method. The variable declared by the "using" statement is already such a local; we could add an optional annotation to all locals and parameters to make them act like "using" variables. It's never been ...
Reading file contents on the client-side in javascript in various browsers
...mentById("fileContents").innerHTML = evt.target.result;
}
reader.onerror = function (evt) {
document.getElementById("fileContents").innerHTML = "error reading file";
}
}
Original answer
There does not appear to be a way to do this in WebKit (thus, Safari and Chrome). The only ...
PHP foreach change original array values
...($_POST[$field['name']]) <= 0) {
$fields[$key]['value'] = "Some error";
}
}
So basically use $field when you need the values, and $fields[$key] when you need to change the data.
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Find all packages installed with easy_install/pip?
...reeze to be reliable in scripts, whereas pip list will generate unexpected errors when being used with pipes.
– Dale Anderson
Jan 18 '17 at 19:54
2
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How to send a simple string between two programs using pipes?
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printf("Received: %s\n", buf);
close(fd);
return 0;
}
Note: Error checking was omitted from the above code for simplicity.
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PHP mkdir: Permission denied problem
I am trying to create a directory with PHP mkdir function but I get an error as follows: Warning: mkdir() [function.mkdir]: Permission denied in ... . How to settle down the problem?
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How to use Swift @autoclosure
...ue"
If we omit the braces, we are passing in an expression and that's an error:
f(pred: 2 > 1)
// error: '>' produces 'Bool', not the expected contextual result type '() -> Bool'
@autoclosure creates an automatic closure around the expression. So when the caller writes an expression li...
HttpServletRequest get JSON POST data [duplicate]
...e()) != null)
jb.append(line);
} catch (Exception e) { /*report an error*/ }
try {
JSONObject jsonObject = HTTP.toJSONObject(jb.toString());
} catch (JSONException e) {
// crash and burn
throw new IOException("Error parsing JSON request string");
}
// Work with the dat...
How to add not null constraint to existing column in MySQL
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Oddly I was getting an error (MySQL 5.6, Workbench 6.3) changing/modifying a column I'd named null_heart_rate_count, error was #1138, Invalid use of NULL value. I had to drop and add the column instead.
– William T. Mallard
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