I have collection of string like '36*' , '95' , '103*', '1001*' , '2301'.
I want to separate these into two parts the numerical part into integer and the asterisks part. eg: take 36 from first, 95 from second, 103 from third and so on. I add them all. If asterisk is found then multiply the number with some factor.
The asterisk is always at the end.
You can extract out the parts you need using a regex.
var values = ['36*', '95', '103*', '1001*', '2301'];
var parts = values.map(function(x) {
var match = /(\d+)(\/|\*|\+|\-)?/.exec(x);
return {
numericPart: match[1],
operator: match[2]
};
});
You can then access the numeric or operator part for each element in your original array. i.e. parts[2].numericPart == 95
The regex (\d+)(\/|\*|\+|\-)? can be broken down as follows;
(\d+) - matches 1 or more digits and stores them in capture group 1
(\/|\*|\+|\-)? - matches a /*+- and stores it in capture group 2, this matches 0 or 1 times
This function will take an input and will return the number & special symbol(*).
function _seperateNum(value){
var returnObj={}; // This object will contain number * special character(if)
var replaceChar="";
if(value.indexOf("*") !=-1){ // check if input has *
replaceChar = value.replace(/[*]/g, ''); // replace it
returnObj.num = parseInt(replaceChar); // convert to number
returnObj.char = "*";
}
else{ // if no special charcater
returnObj.num = parseInt(value);
}
return returnObj;
}
var a =_seperateNum("36*");
console.log(a.num);
var
arr = ['36*' , '95' , '103*', '1001*' , '2301'],
sum = 0;
for (var i in arr) {
var item = arr[i];
sum += parseInt(item.indexOf('*') != -1 ? item.replace('*', '') : item);
}
alert(sum);
var arr = ['36*' , '95' , '103*', '1001*' , '2301'];
var t = [];
var f = [];
arr.forEach(function(e){if(e.indexOf("*") > 0){ t.push(e) } else { f.push(e) } } );
console.log(t); //asterisk values
#=> ["36*", "103*", "1001*"]
console.log(f); // other value
#=> ["95", "2301"]
if you want to multiple the each element of the array of asterisk elements to a factor like 10
arr.forEach(function(e){if(e.indexOf("*") > 0){ t.push(parseInt(e)* 10) } else { f.push(parseInt(e)) } } );
console.log(t); //asterisk values
#=> [360, 1030, 10010]
console.log(f); // other value
#=> [95, 2301]
'36' * factor , '95' , '103' * factor, '1001' * factor , '2301'?