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How to check a not-defined variable in JavaScript
...lejandroSilva Sorry for late reply. That won't work since typeof returns a string, so it will return 'undefined' for an undefined variable, which in turn will evaluate as TRUE therefore leading to a false positive of a defined var.
– Dmitri Farkov
Mar 17 '15 at...
How do I upload a file with metadata using a REST web service?
...p://example.com/add-file
...in which case request.args['files'] will be a string containing all the files, which you'll have to parse yourself — not sure how to do it, but I'm sure it's not difficult, or better just use the previous approaches.
The difference between @ and < is that @ causes t...
How to create an installer for a .net Windows Service using Visual Studio
...ne of my services you can use as a starting point.
public static int Main(string[] args)
{
if (System.Environment.UserInteractive)
{
// we only care about the first two characters
string arg = args[0].ToLowerInvariant().Substring(0, 2);
switch (arg)
{
...
What's the proper value for a checked attribute of an HTML checkbox?
...lse value.
If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace.
Conclusion:
The following are valid, equivalent and true:
<input type="checkbox" checke...
How to convert an array to object in PHP?
...y and '240' on production - massive dissaster. Morover if conversion fails string get's returned as NULL
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Custom fonts in iOS 7
...nt familyNames];
for (int i = 0; i < [fontFamilies count]; i++)
{
NSString *fontFamily = [fontFamilies objectAtIndex:i];
NSArray *fontNames = [UIFont fontNamesForFamilyName:[fontFamilies objectAtIndex:i]];
NSLog (@"%@: %@", fontFamily, fontNames);
}
Search for your font in printed r...
How do I escape characters in c# comments?
... would be &lt; and > would be &gt;. As an example, List&lt;string&gt; myStringList = new List&lt;string&gt;();
– Arvo Bowen
Jun 7 '16 at 0:00
...
Regex for password must contain at least eight characters, at least one number and both lower and up
...
And How to avoid for empty string. Empty string regex should return true. I have used following regex (?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=])(?=\\S+$).{8,15}
– Coder
Jun 15 '18 at 7:52
...
How to map calculated properties with JPA and Hibernate
...ect DATEDIFF(expiry_date,issue_date) from document_storage)")
private String myColumn;
the errors i get when i run and display my view even before trying to display the column on mustache is something like this
java.lang.NullPointerException
at java.base/java.lang.String$CaseInsensitiv...
JPA : How to convert a native query result set to POJO class collection
...answer.model.Jedi">
<column name="name" class="java.lang.String"/>
<column name="age" class="java.lang.Integer"/>
</constructor-result>
</sql-result-set-mapping>
And those are all the solutions I know. The last two are the ideal way if...