如何从 Javascript 中的数字数组中删除前导零

Question

 let array = [000232, 0043, 0000454523, 0234]

Expected output: [232, 43, 454523, 234]

There are lots of ways, where we can remove leading zeros if it is a string or arrays of strings.

arr.map( (value) => { console.log(parseInt(value, 10) )})

So, what I tried, to convert those Array of numbers to string values:

1. array.map(String);
2. array.join().split(',');

But it's not working as expected.

Any help would be appreciated.

Answer 1

With leding zero, you use octal numbers . To get decimals, you need to convert back to octals and parse this values as decimal numbers.

This approach works only on an array of octal numbers. It is not possible, to check if a value is taken from an octal literal.

 let array = [000232, 0043, 0000454523, 0234], values = array.map(n => parseInt(n.toString(8), 10)); console.log(values);

Answer 2

Try this:

 let tmpArray = [000232, 0043, 0000454523, 0234]; let row1 = tmpArray.map(function (val) { return Number(val.toString(8)); }); console.log(row1);