Java Script Tricks

Caps_conversion.js

function ucFirstAllWords( str )
{
    var pieces = str.split(" ");
    for ( var i = 0; i < pieces.length; i++ )
    {
        var j = pieces[i][0].toUpperCase();
        pieces[i] = j + pieces[i].substr(1).toLowerCase();
    }
    return pieces.join(" ");
}

NumberConversion.js

// Converts the string to number
// If passed string is not a number then it will return NaN (Not a Number)
function toNumber( strNumber)
{
  return +strNumber;
}

+strNumber is causing the string to be a positive no., in case the string is not a number then the casting fails and returns NaN (Not a Number).
It also works by using -strNumber but will result in negative no. if positive no. is passed and positive if a negative no. is passed.