Utilize the function with another function (difficult to articulate)

Question

Utilize the function with another function (difficult to articulate)

Apologies in advance for my beginner question.

Review the code snippet below:

var dt = new Date(t*1000);
var m = "0" + dt.getMinutes();

Depending on the t variable (unix time), the output can be one of the following:

m = 054 // 54 minutes
m = 03 // 3 minutes

The formatting breaks when there are too many minutes. To solve this, we need to extract only the last two characters by using:

var m = "0" + dt.getMinutes();
m = m.substr(-2);

Resulting in:

m = 54 // 54 minutes
m = 3  // 03 minutes

Problem solved, right? However, repeating the variable assignment seems inefficient. I attempted:

var m = "0" + dt.getMinutes().substr(-2);

But encountered this error:

TypeError: dt.getMinutes(...).substr is not a function

Is there a more concise way to achieve this?

javascript

Answer 1

Answer №1

Date Manipulation Guide explains that Date.getMinutes returns an integer, not a string. Therefore, attempting to use substr on it will result in an error. However, wrapping the "0" + dt.getMinutes() expression in parentheses converts it to a string, allowing you to successfully call substr:

var dt = new Date();
var m = ("0" + dt.getMinutes()).substr(-2);
console.log(m);

Answer 2

Date Manipulation Guide explains that Date.getMinutes returns an integer, not a string. Therefore, attempting to use substr on it will result in an error. However, wrapping the "0" + dt.getMinutes() expression in parentheses converts it to a string, allowing you to successfully call substr:

var dt = new Date();
var m = ("0" + dt.getMinutes()).substr(-2);
console.log(m);

Utilize the function with another function (difficult to articulate)

Answer №1

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