In my Stata do scripts, I often have to compare dates which may be missing. Unfortunately, 开发者_开发技巧the internal representation of . is the largest possible number of the given range, so the fol
I was wondering if there is any way to detect if a number is negative in PHP? I have the following code:
Comparing boolean values with == works in Python. But when I apply the boolean not operator, the result is a syntax error:
Comparing two instances of the follow开发者_运维问答ing struct, I receive an error: struct MyStruct1 {
There are many cases in which JavaScript\'s type-coercing equality operator is not transitive. For example, see \"JavaScript equality tran开发者_运维问答sitivity is weird.\"
With PostgreSQL and MySQL it is all right to do something like SELECT * FROM mytable WHERE (column1, column2) = (\'value1\', \'value2\'开发者_开发技巧);
I\'ve been reading Douglas Crockford\'s JavaScript: The Good Parts,开发者_高级运维 and I came across this weird example that doesn\'t make sense to me:
There seems to be an issue when using shared pointers together with a custom equality operator and an std::list.
This question already has answers here: Closed 11 years ago. Possibl开发者_如何学JAVAe Duplicates:
<?php $gender = \"devilcode\"; if (($gender == \"female\") || ($gender = \"male\")) { echo \"ok\"; } else echo开发者_运维技巧 \"no\";
加载中,请稍侯......