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How to increase IDE memory limit in IntelliJ IDEA on Mac?
...ll automatically create a copy of the .vmoptions file in the config folder and open a dialog to edit it.
Older versions:
IntelliJ IDEA 12 is a signed application, therefore changing options in Info.plist is no longer recommended, as the signature will not match and you will get issues depending ...
How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...here for more details):
Search in Elements panel like below
Execute $x() and $$() in Console panel, as shown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how you search XPath in Elements panel:
Press F12 to open Chrome De...
How to add leading zeros for for-loop in shell? [duplicate]
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Best answer, and it avoids using clumsy external commands (like 'seq', not necessary in proper Bash). Helped me.
– Scott Prive
Jan 28 '15 at 20:31
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How can I check for an empty/undefined/null string in JavaScript?
...e !!(not not) operator.
if(!!str){
// Some code here
}
Or use type casting:
if(Boolean(str)){
// Code here
}
Both do the same function. Typecast the variable to Boolean, where str is a variable.
It returns false for null,undefined,0,000,"",false.
It returns true for string "0" and whi...
Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
...
v = !v;
or if they must be numbers:
v = +!v; /* Boolean invert v then cast back to a Number */
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python exception message capturing
... @HeribertoJuárez Why catch special cases while you can simply cast it to string?
– HosseyNJF
Apr 19 at 18:13
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Can two Java methods have same name with different return types? [duplicate]
...have to do to create an array of generics, or the use of double and triple casts, or the fact that even java.util.ArrayList doesn't compile without warnings (got to be the most basic of use cases)
– Peter Lawrey
Apr 6 '11 at 7:52
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Which terminal command to get just IP address and nothing else?
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It says that -i and -I are both illegal options
– Mason
Dec 16 '11 at 3:08
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LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method ca
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Cast table to Enumerable, then you call LINQ methods with using ToString() method inside:
var example = contex.table_name.AsEnumerable()
.Select(x => new {Date = x.date.ToString("M/d/yyyy")...)
But be careful, when ...
Singleton: How should it be used
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Answer:
Use a Singleton if:
You need to have one and only one object of a type in system
Do not use a Singleton if:
You want to save memory
You want to try something new
You want to show off how much you know
Because everyone else is doing it (See cargo cult programmer in...