Grâce à cette fonction, vous pourrez formater des valeurs dans de multiples formats comme 1.234,56
y 1,234.56
et même avec des erreurs comme 1.234.56
y 1,234,56
/**
* @param {string} value: value to convert
* @param {bool} coerce: force float return or NaN
*/
function parseFloatFromString(value, coerce) {
value = String(value).trim();
if ('' === value) {
return value;
}
// check if the string can be converted to float as-is
var parsed = parseFloat(value);
if (String(parsed) === value) {
return fixDecimals(parsed, 2);
}
// replace arabic numbers by latin
value = value
// arabic
.replace(/[\u0660-\u0669]/g, function(d) {
return d.charCodeAt(0) - 1632;
})
// persian
.replace(/[\u06F0-\u06F9]/g, function(d) {
return d.charCodeAt(0) - 1776;
});
// remove all non-digit characters
var split = value.split(/[^\dE-]+/);
if (1 === split.length) {
// there's no decimal part
return fixDecimals(parseFloat(value), 2);
}
for (var i = 0; i < split.length; i++) {
if ('' === split[i]) {
return coerce ? fixDecimals(parseFloat(0), 2) : NaN;
}
}
// use the last part as decimal
var decimal = split.pop();
// reconstruct the number using dot as decimal separator
return fixDecimals(parseFloat(split.join('') + '.' + decimal), 2);
}
function fixDecimals(num, precision) {
return (Math.floor(num * 100) / 100).toFixed(precision);
}
parseFloatFromString('1.234,56')
"1234.56"
parseFloatFromString('1,234.56')
"1234.56"
parseFloatFromString('1.234.56')
"1234.56"
parseFloatFromString('1,234,56')
"1234.56"