I have a function which parses time strings, formatted as hh:mm (for example 18:45). Hours and minutes can be divided by colon, a blank space (18 45) or a comma (18,45).
The following variables split the time string if a colon is used:
var hourstart = parseInt(ini.substr(0, ini.indexOf(':')));
var minutestart = parseInt(ini.substr(ini.indexOf(":") + 1));
How can I make them work also when a blank space or a comma is used? I tried with:
ini.indexOf(':'||' '||',')
but it does not work.
If you want to also check if the string conforms to the format digits+, .+digits, you may use a /^(\d+)[ :,](\d+)$/ regex (or even /^(0?[0-9]|1[0-9]|2[0-3]):([0-5][0-9])$/):
var s = "18:45";
var m = s.match(/^(\d+)[ :,](\d+)$/);
if (m) {
console.log("Hour: " + parseInt(m[1]));
console.log("Minute: " + parseInt(m[2]));
}Details:
^ - start of string(\d+) - Group 1 (hours) capturing 1 or more digits[ :,] - a character class matching 1 single char: either a space, or : or ,(\d+) - Group 2 (minutes) capturing 1 or more digits$ - end of string.AND
(0?[0-9]|1[0-9]|2[0-3]) - captures hours from 00 to 23 with an optional leading 0 and([0-5][0-9]) - captures minutes (from 00 to 59)
/^(0?[0-9]|1[0-9]|2[0-3]):([0-5][0-9])$/. That depends on the level of the input string "pre-validation".You can use a regex to split with
var time = "18 45";
var parts = time.split(/[,\s\.\:]+/).map(Number);
var hours = parts.shift();
var mins = parts.shift();
console.log(hours);
console.log(mins);
var parts = ini.split(/[:,\s\.]+/).map(Number); var hourstart = parseInt(parts.shift()); var minutestart = parseInt(parts.shift());
.map(Number) part does, it parses all the values as numbers.parseInt it returned NaN:NaN value, after some computations on the hour/minute values.