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Python Dictionary Comprehension
... occurrence of words in a list using dictionary comprehension
my_list = ['hello', 'hi', 'hello', 'today', 'morning', 'again', 'hello']
my_dict = {k:my_list.count(k) for k in my_list}
print(my_dict)
And the result is
{'again': 1, 'hi': 1, 'hello': 3, 'today': 1, 'morning': 1}
...
PHP - concatenate or directly insert variables in string
...ted string--even if you surround it with braces!
//syntax error!!
//$s = "Hello {trim($world)}!"
//the only option
$s = "Hello " . trim($world) . "!";
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What underlies this JavaScript idiom: var self = this?
...
alert(that.someprop);
});
}
new MyConstructor({
someprop: "Hello World"
});
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...
Python's os.makedirs doesn't understand “~” in my path
...r.
NOTE : it will also create folders in path (if required)
srb@srb-pc:~/hello$ ls
srb@srb-pc:~/hello$ python3
>>> from srblib import verify_folder
>>> verify_folder('~/hello/A/B')
>>> exit()
srb@srb-pc:~/hello$ ls
A
srb@srb-pc:~/hello$ ls A
B
srb@srb-pc:~/hello$
Thi...
Make the first letter uppercase inside a django template
... string uppercase. It makes first letter of each word uppercase. Example, "hello world" does not become "Hello world". It becomes "Hello World".
– Marcus Lind
Mar 30 '15 at 7:51
9
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Iterate through options
...
Your HTML Code
<select id="mySelectionBox">
<option value="hello">Foo</option>
<option value="hello1">Foo1</option>
<option value="hello2">Foo2</option>
<option value="hello3">Foo3</option>
</select>
You JQuery Code
$(...
Use of #pragma in C
...el num_threads(4)
{
int i = omp_get_thread_num();
printf_s("Hello from thread %d\n", i);
}
}
the output is
Hello from thread 0
Hello from thread 1
Hello from thread 2
Hello from thread 3
Note that the order of output can vary on different machines.
now let me tell you what #p...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...
int* p = 0x00000000; // pointer to NULL
puts( "hello ");
__try{
puts( "in try ");
__try{
puts( "in try ");
*p = 13; // causes an access violation exception;
}__finally{
...
Listening for variable changes in JavaScript
...lue}`);
target[key] = value;
return true;
}
});
targetProxy.hello_world = "test"; // console: 'hello_world set to test'
The only drawbacks of the Proxy object are:
The Proxy object is not available in older browsers (such as IE11) and the polyfill cannot fully replicate Proxy fun...
How to remove all white space from the beginning or end of a string?
...
string a = " Hello ";
string trimmed = a.Trim();
trimmed is now "Hello"
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