format number angular in component-CodePudding

hello,

I have a number that I am trying to transform into my ts file but I can't get it to work.

here is the number: 123456.059

expected result: 1.234

Thanks for your help.

import { DecimalPipe } from '@angular/common';

class MyService {
  constructor(private _decimalPipe: DecimalPipe) {}

  transformDecimal(num) {
    return this._decimalPipe.transform(num, '1.2-2');
  }
}

CodePudding user response：

Answer: return this._decimalPipe.transform(num, '1.0-3');

'1.0-3' Explanation:

{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}

minIntegerDigits: The minimum number of integer digits before the decimal point. Default is 1.
minFractionDigits: The minimum number of digits after the decimal point. Default is 0.
maxFractionDigits: The maximum number of digits after the decimal point. Default is 3.

So, one number is an entire, and it can have maximum 3 decimals. I.e: 5.456449 => 5.456

Source: