大约有 40,000 项符合查询结果（耗时：0.0603秒） [XML]
Add one row to pandas DataFrame
...
Consider adding the index to preallocate memory (see my answer)
– FooBar
Jul 23 '14 at 14:22
34
...
Get and Set a Single Cookie with Node.js HTTP Server
...equest) {
var list = {},
rc = request.headers.cookie;
rc && rc.split(';').forEach(function( cookie ) {
var parts = cookie.split('=');
list[parts.shift().trim()] = decodeURI(parts.join('='));
});
return list;
}
http.createServer(function (request, r...
Difference between app.all('*') and app.use('/')
...alls are processed in the order of writing
Look at this expressJs code sample:
var express = require('express');
var app = express();
app.use(function frontControllerMiddlewareExecuted(req, res, next){
console.log('(1) this frontControllerMiddlewareExecuted is executed');
next();
});
app.a...
Replace a string in shell script using a variable
...
I had a similar requirement to this but my replace var contained an ampersand. Escaping the ampersand like this solved my problem:
replace="salt & pepper"
echo "pass the salt" | sed "s/salt/${replace/&/\&}/g"
...
Repeat String - Javascript
...c string, you might get strange behaviour due to JS's type juggling. for example: "my string".repeat("6") == "61"
– nickf
May 19 '09 at 2:28
19
...
In STL maps, is it better to use map::insert than []?
... question came into my mind but not over readability but speed.
Here is a sample code through which I came to know about the point i mentioned.
class Sample
{
static int _noOfObjects;
int _objectNo;
public:
Sample() :
_objectNo( _noOfObjects++ )
{
std::cout<<"...
ipython: print complete history (not just current session)
...%hist or %history to print recent history, but this only prints history from current session.
3 Answers
...
AngularJS ng-click stopPropagation
... like me this is how it works when you need the two data way binding for example after updating an attribute in any model or collection:
angular.module('yourApp').directive('setSurveyInEditionMode', setSurveyInEditionMode)
function setSurveyInEditionMode() {
return {
restrict: 'A',
link:...
What is the difference between `sorted(list)` vs `list.sort()`?
...tween sorted(list) vs list.sort()?
list.sort mutates the list in-place & returns None
sorted takes any iterable & returns a new list, sorted.
sorted is equivalent to this Python implementation, but the CPython builtin function should run measurably faster as it is written in C:
def sor...
How can I view array structure in JavaScript with alert()?
...
pass your js array to the function below and it will do the same as php print_r() function
alert(print_r(your array)); //call it like this
function print_r(arr,level) {
var dumped_text = "";
if(!level) level = 0;
//The padding given at the beginning of the line.
var level_padding = "";
f...