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What happens to a declared, uninitialized variable in C? Does it have a value?
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Static variables (file scope and function static) are initialized to zero:
int x; // zero
int y = 0; // also zero
void foo() {
static int x; // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prior to assigning a ...
Javascript Functions and default parameters, not working in IE and Chrome
...u can't do this, but you can instead do something like:
function saveItem(andClose) {
if(andClose === undefined) {
andClose = false;
}
}
This is often shortened to something like:
function setName(name) {
name = name || 'Bob';
}
Update
The above is true for ECMAScript <= 5. E...
Limit File Search Scope in Sublime Text 2
In Sublime Text, I often use Cmd + P / Ctrl + P to search and jump between files.
12 Answers
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How can I get column names from a table in SQL Server?
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You can obtain this information and much, much more by querying the Information Schema views.
This sample query:
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = N'Customers'
Can be made over all these DB objects:
CHECK_CONSTRAINTS
COL...
What is the difference between LINQ ToDictionary and ToLookup
What is the difference between LINQ ToDictionary and ToLookup? They seem to do the same thing.
2 Answers
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How to disable CSS in Browser for testing purposes
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The Web Developer plugin for Firefox and Chrome is able to do this
Once you have installed the plugin the option is available in the CSS menu. For example, CSS > Disable Styles > Disable All Styles
Alternatively with the developer toolbar enabled you ...
C++: What is the size of an object of an empty class?
... It surely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object?
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How can I run an external command asynchronously from Python?
I need to run a shell command asynchronously from a Python script. By this I mean that I want my Python script to continue running while the external command goes off and does whatever it needs to do.
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Service Reference Error: Failed to generate code for the service reference
I have a Windows Service Solution and am trying to add a service reference to a Hermes(Opensource ebms message server) Web Service in VS2010.
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Running a Python script from PHP
I'm trying to run a Python script from PHP using the following command:
9 Answers
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