Is there a way to extract just the "HH:MM" portion from a time string formatted as "HH:MM:SS"? I'm looking to achieve this using JavaScript. For instance, if I have a time value of "15:50:30", I am seeking a method to output only "15:50".
Is there a way to extract just the "HH:MM" portion from a time string formatted as "HH:MM:SS"? I'm looking to achieve this using JavaScript. For instance, if I have a time value of "15:50:30", I am seeking a method to output only "15:50".
Try using the substring method
let time = '09:57:22';
time = time.substring(0,5);
Employ the slice method
"15:50:30".slice(0,-3)
function addLeadingZero(num) {
if (num < 10) {
num = "0" + num;
}
return num;
}
var currentDate = new Date();
var hours = addLeadingZero(currentDate.getHours());
var minutes = addLeadingZero(currentDate.getMinutes());
console.log(hours + ":" + minutes )
Take a look at this reference for converting dates to minutes and hours
var currentDate = new Date();
var timeWithoutSeconds = currentDate.toLocaleTimeString(navigator.language, {hour: '2-digit', minute:'2-digit'});
Transforming time into date format can be done effortlessly.
For instance, if your current time is "2:33:58 PM," you can pass it to a new date variable.
Simply use the code snippet: time = new Date(time);
After this, the new time variable will contain the complete date information.
You can then create a string that retrieves the time and hours from this new variable by writing:
time = time.getHours() + ":" + time.getMinutes();Although using slice and substring can get the job done, I want to highlight the effectiveness of Regular Expressions due to their flexibility with inputs.
Regular Expressions can handle both single and double digits, which could present a challenge for slice and substring:
var tests = ['12:12:12', '1:1:1', '1:12:1', '12:12:1212: 12:12'];
for (var _i = 0, tests_1 = tests; _i < tests_1.length; _i++) {
var test = tests_1[_i];
console.log("result of regex on \"" + test + "\" is: \"" + /\d+:\d+/ig.exec(test).shift() + "\"");
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