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How can I implement prepend and append with regular JavaScript?
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If you want to insert a raw HTML string no matter how complex, you can use:
insertAdjacentHTML, with appropriate first argument:
'beforebegin'
Before the element itself.
'afterbegin'
Just inside the element, before its first child.
'...
Validate that a string is a positive integer
...If you want it to be a normalized decimal integer string over a reasonable range of values, you can do this:
function isNormalInteger(str) {
var n = Math.floor(Number(str));
return n !== Infinity && String(n) === str && n >= 0;
}
or if you want to allow whitespace and l...
Making HTTP Requests using Chrome Developer tools
...opy as cURL
Open Postman
Click Import in the upper-left corner then Paste Raw Text
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Best way to create a simple python web service [closed]
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Raw CGI is kind of a pain, Django is kind of heavyweight. There are a number of simpler, lighter frameworks about, e.g. CherryPy. It's worth looking around a bit.
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How to remove the left part of a string?
...requires section headers to be present
path = config.get(section, 'path', raw=1) # case-insensitive, no interpolation
Other options
str.split()
re.match()
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Javascript calculate the day of the year (1 - 366)
...ton><span></span>
Here is the version with correct range-validation.
function dayNo(y,m,d){
return --m>=0 && m<12 && d>0 && d<29+(
4*(y=y&3||!(y%25)&&y&15?0:1)+15662003>>m*2&3
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Extract elements of list at odd positions
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For the odd positions, you probably want:
>>>> list_ = list(range(10))
>>>> print list_[1::2]
[1, 3, 5, 7, 9]
>>>>
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How to know/change current directory in Python shell?
...tever, you need to double up backslashes if you use them in a regular (non-raw) Python string. Python also lets you use forward slashes instead. Thus, either os.chdir('C:/Users/Ajeya/Documents'), or os.chdir('C:\\Users\\Ajeya\\Documents'), or os.chdir(r'C:\Users\Ajeya\Documents').
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How to have jQuery restrict file types on upload?
... name="file" onchange="checkFileSize(this, @Model.MaxSize.ToString(),@Html.Raw(Json.Encode(Model.FileExtensionsList)))" />
Javascript:
//function for check attachment size and extention match
function checkFileSize(element, maxSize, extentionsArray) {
var val = $(element).val(); //get fil...
How to initialize an array in one step using Ruby?
... can use an array literal:
array = [ '1', '2', '3' ]
You can also use a range:
array = ('1'..'3').to_a # parentheses are required
# or
array = *('1'..'3') # parentheses not required, but included for clarity
For arrays of whitespace-delimited strings, you can use Percent String syntax:
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