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Reference: Comparing PHP's print and echo
...es sure that the return value for print is 1, as follows:
ZVAL_LONG(&EX_T(opline->result.var).tmp_var, 1);
(see here for reference)
The return value is a convenience should one wish to use print in a conditional expression. Why 1 and not 100? Well in PHP the truthiness of 1 or 100 is the...
How to get the concrete class name as a string? [duplicate]
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instance.__class__.__name__
example:
>>> class A():
pass
>>> a = A()
>>> a.__class__.__name__
'A'
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Sorting dictionary keys in python [duplicate]
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my_list = sorted(dict.items(), key=lambda x: x[1])
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What's the use of do while(0) when we define a macro? [duplicate]
I'm reading the linux kernel and I found many macros like this:
2 Answers
2
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Ruby array to string conversion
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how to revert this?
– zx1986
Jan 19 '17 at 4:49
what do you mean revert @zx1986
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get an element's id
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Yes you can just use the .id property of the dom element, for example:
myDOMElement.id
Or, something like this:
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
alert(inputs[i].id);
}
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What rules does software version numbering follow? [duplicate]
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The usual method I have seen is X.Y.Z, which generally corresponds to major.minor.patch:
Major version numbers change whenever there is some significant change being introduced. For example, a large or potentially backward-incompatible change to a softwar...
HttpServletRequest get JSON POST data [duplicate]
I am HTTP POST-ing to URL http://laptop:8080/apollo/services/rpc?cmd=execute
2 Answers
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Python constructor and default value [duplicate]
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Michael J. Barber's contribution is correct - but no explanation is offered. The reason for this behavior is that the default argument is bound at function definition, not runtime. See stackoverflow.com/questions/1132941/…
– A---
May 6 '1...
Is there a math nCr function in python? [duplicate]
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Why comprehension not just xrange?
– gorlum0
Feb 9 '11 at 7:50
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