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What is the fastest way to get the value of π?
...ng for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI , or hard-coding the number in.
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Is there a built-in function to print all the current properties and values of an object?
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why don't you talk more about inspect module in your answer? I think it is the closest thing to print_r or var_dump.
– Hai Phaikawl
May 22 '12 at 10:56
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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...re is a difference, but there is no difference in that example.
Using the more verbose method: new Array() does have one extra option in the parameters: if you pass a number to the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the differ...
What is the difference between graph search and tree search?
...rom open
}
return next
Comparison
We notice that graph search requires more memory, as it keeps track of all visited states. This may compensated by the smaller open list, which results in improved search efficiency.
Optimal solutions
Some methods of implementing select can guarantee to return...
not:first-child selector
... first solution: caniuse.com/#feat=css-not-sel-list The second one sounded more reasonable for me. Thanks!
– iorrah
Jun 22 '18 at 13:17
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How do I determine the size of an object in Python?
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What is aspect-oriented programming?
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How do I loop through a date range?
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What is this 'Lambda' everyone keeps speaking of?
...ut there are other higher order functions, like forEach, that perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numb...
how do I query sql for a latest record date for each user
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Careful with this approach: it can return more than one row per user if they have more than one record per date (max(date) would return a date that would join multiple records). To avoid this issue, it would be preferable to use @dotjoe's solution: stackoverflow.com/...