For example, how can I get "1.2" and "kg" for x in the following example? Currently, I get "", "1.", and "kg".
function split()
{
var data = "1.2kg";
var x = data.split(/([0-9]*[.])?[0-9]+/);
}
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Instead of split, would capture groups (non-letters)(letters) do it?user3456014– user34560142020-05-16 18:32:55 +00:00Commented May 16, 2020 at 18:32
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7 Answers
This should work:
function split()
{
var data = "1.2kg";
var x = data.match(/[\d\.]+|\D+/g);
console.log(x);
}
split();
Comments
You can achive this with parseFloat, if you need float value, there is no need for regex.
var data = "1.2kg";
console.log(parseFloat(data)) // 1.2
Comments
Something like that:
let [value,unit] = data.match(/^[0-9.]*|[a-z]*$/g)
Obviously it's not an enterprise grade solution. If more then one dot, nonalpha characters, uppercase letters appears in input, the result may vary.
['1.2kg',
'1.2 kg',
'10.0.0.2 IP',
'1 square méter' ].map(
data => data.match(/^[0-9.]*|[a-z]*$/g)
)
2 Comments
Damn Vegetables
It works, but it creates 3 elements, of which the last element is an empty string. I can ignore the last one, but why does it create 3?
Cagri Tacyildiz
match creates always array . Then if you use match rather than replace than you can take first element of array
you need to use match and not split. :-)
var data = "1.2kg";
var m = data.match(/[.0-9]+/);
console.log(m[0])
Comments
function split()
{
var data = "hello world";
var x = data.split(/\s/);
document.getElementById('test').innerHTML = x
}
split()<span id="test"></span>If you look at this simplified post, you will see it removes the item it is matched on. So I don't think split is what you want. what is the variation on the format? You could use simple regex to remove the number?
function doWork() {
var str = "1.2kg";
var matches = str.match(/(\d+)\.{0,1}(\d)/);
if (matches) {
document.getElementById('demo').innerHTML
= matches[0];
}
}
doWork()<p>String is "1.2kg"</p>
<span id="demo"></span>
Comments
I'm not an expert on this, but I got this to work:
var x = data.split(/([0-9]*[.]*[0-9])/);
Comments
Alternative: parseFloat and slice (using findIndex)
const parseAndSplitQuantity = s => `${parseFloat(s)} ${
s.slice( [...s].findIndex( v => /[^0-9|.]/.test(v) ) ) }`;
["1.2kg", "23.45Mb", "100Pound", "20.34Dollar", "23187.22Miles"]
.forEach( str => console.log(`${str} => ` + parseAndSplitQuantity(str)) );.as-console-wrapper { top: 0; max-height: 100% !important; }