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Why is null an object and what's the difference between null and undefined?
...avaScript: Boolean false.
name = '';
You: What is name?
JavaScript: Empty string
*: name in this context is meant as a variable which has never been defined. It could be any undefined variable, however, name is a property of just about any HTML form element. It goes way, way back and was institute...
Jquery - How to make $.post() use contentType=application/json?
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@PavelRepin, I had to call JSON.stringify() on the payload.
– Ustaman Sangat
Apr 30 '12 at 23:41
2
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Why can I add named properties to an array as if it were an object?
...f
lastIndexOf
map
pop
push
reverse
shift
slice
some
sort
splice
toSource
toString
unshift
valueOf
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Select all elements with “data-” attribute without using jQuery
....querySelector(`[data-foo="${i}"]`)
Note even if you don't write value in string it gets converted to string like if I write
<div data-foo=1></div>
and then inspect the element in Chrome developer tool the element will be shown as below
<div data-foo="1"></div>
You can als...
How to get current location in Android [duplicate]
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You may also need @Override public void onStatusChanged(String provider, int status, Bundle extras) { } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { }
– Ege K...
How to match “any character” in regular expression?
... want a simple test harness in Java, here's one for you to play with:
String[] tests = {
"AAA123",
"ABCDEFGH123",
"XXXX123",
"XYZ123ABC",
"123123",
"X123",
"123",
};
for (String test : tests) {
System.out.println(test + " "...
Extending from two classes
...s(this);
}
//Implement each method you want to use.
public String getInfoFromOtherClass()
{
return mClass.getInfoFromOtherClass();
}
}
this is the best solution I have come up with.
You can get the functionality from both classes and Still only actually be of one...
'printf' vs. 'cout' in C++
...t use different syntax. printf uses standard function syntax using pattern string and variable-length argument lists. Actually, printf is a reason why C has them - printf formats are too complex to be usable without them. However, std::cout uses a different API - the operator << API that retur...
Pro JavaScript programmer interview questions (with answers) [closed]
...thout throwing errors. In addition it should be able to handle numbers as strings for extra credit.
– Abadaba
Dec 19 '12 at 6:25
2
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Count the number occurrences of a character in a string
...'s the simplest way to count the number of occurrences of a character in a string?
19 Answers
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