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How to convert a table to a data frame
...ork - that's why Victor was asking the question, I thought? Could you clarify?
– Heather Stark
Nov 30 '13 at 21:53
4
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Difference between Convert.ToString() and .ToString()
What is the difference between Convert.ToString() and .ToString() ?
19 Answers
19
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Making a Location object in Android with latitude and longitude values
... gps, will it give me the current location? In other words what is the significance of provider
– Utsav Gupta
Oct 10 '15 at 14:03
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Set value for particular cell in pandas DataFrame using index
...urns a new dataframe with a copy of the data, so
df.xs('C')['x']=10
modifies this new dataframe only.
df['x'] returns a view of the df dataframe, so
df['x']['C'] = 10
modifies df itself.
Warning: It is sometimes difficult to predict if an operation returns a copy or a view. For this reason...
How can I convert ereg expressions to preg in PHP?
...str);
preg_match('(^hello)', $str);
preg_match('{^hello}', $str);
// etc
If your delimiter is found in the regular expression, you have to escape it:
ereg('^/hello', $str);
preg_match('/^\/hello/', $str);
You can easily escape all delimiters and reserved characters in a string by using preg_quo...
What is the use of making constructor private in a class?
...
@Will: Not if you use reflection. Declaring constructors private is intended to prevent instantiation (barring reflection), but preventing subclassing is a side effect, not the intent. The appropriate tool for this is declaring the cla...
How do I redirect to another webpage?
...y, meaning the user won't get stuck in a never-ending back-button fiasco.
If you want to simulate someone clicking on a link, use
location.href
If you want to simulate an HTTP redirect, use location.replace
For example:
// similar behavior as an HTTP redirect
window.location.replace("http://sta...
JavaScript: Passing parameters to a callback function
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If you want something slightly more general, you can use the arguments variable like so:
function tryMe (param1, param2) {
alert(param1 + " and " + param2);
}
function callbackTester (callback) {
callback (arguments...
Page redirect after certain time PHP
...o set header witch will tell the browser to refresh the page in 5 seconds, if you really want to display blank page simply use die();
– Teneff
May 25 '11 at 4:27
2
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Accessing outside variable using anonymous function as params
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@machineaddict The basic use is early binding - if you mean workaround for late binding - you would pass the variable through use by reference - using & => use (&$result) and alter $result variable before you call the anonymous function (or something, that calls...