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'echo' without newline in a shell script
...as much more consistent behavior. echo is fine for simple things like echo hello, but I suggest using printf for anything more complicated.
What system are you on, and what shell does your script use?
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How to tell if a string contains a certain character in JavaScript?
...
To find "hello" in your_string
if (your_string.indexOf('hello') > -1)
{
alert("hello found inside your_string");
}
For the alpha numeric you can use a regular expression:
http://www.regular-expressions.info/javascript.html
A...
Truncate a string straight JavaScript
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Yes, substring works great:
stringTruncate('Hello world', 5); //output "Hello..."
stringTruncate('Hello world', 20);//output "Hello world"
var stringTruncate = function(str, length){
var dots = str.length > length ? '...' : '';
return str.substring(0, length)+d...
How to remove duplicate white spaces in string using Java?
...tive same type white spaces with one white space of its type. That is:
Hello!\n\n\nMy World
will be
Hello!\nMy World
Notice there are still leading and trailing white spaces. So my complete solution is:
str = str.trim().replaceAll("(\\s)+", "$1"));
Here, trim() replaces all leadin...
Ruby capitalize every word first letter
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"hello world".titleize which should output "Hello World".
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What is stack unwinding?
...k = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error( "boom" );
delete [] pleak; // will only get here if x == 0. if x!=0, throw exception
}
int main()
{
try
{
func( 10 )...
How to get the return value from a thread in python?
...k to the main thread:
import concurrent.futures
def foo(bar):
print('hello {}'.format(bar))
return 'foo'
with concurrent.futures.ThreadPoolExecutor() as executor:
future = executor.submit(foo, 'world!')
return_value = future.result()
print(return_value)
...
Delegates: Predicate vs. Action vs. Func
... as well.
myForm.BeginInvoke((MethodInvoker)delegate
{
MessageBox.Show("Hello, world...");
});
I'd also be aware of ThreadStart and ParameterizedThreadStart; again most people will substitute an Action these days.
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How to convert a char array to a string?
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@kingsmasher1: Strictly speaking, strings in the form "hello world" are arrays. If you use sizeof("hello world") it will give you the size of the array (which is 12), rather than the size of a pointer (likely 4 or 8).
– dreamlax
Jan 22 '12 a...
Loop through an array in JavaScript
...ou have several options:
1. Sequential for loop:
var myStringArray = ["Hello","World"];
var arrayLength = myStringArray.length;
for (var i = 0; i < arrayLength; i++) {
console.log(myStringArray[i]);
//Do something
}
Pros
Works on every environment
You can use break and continue...