Formatting text with tabs or spaces

Question

I have object like this:

{
 Name: "John"
 Location: "Unknown"
 Type: "Unknown"
 Status: "Unknown"
 Phone_number: "Unknown"
}

Need to format it like this (with tabs or spaces):

Name:           John // three tabs
Location:       Unknown // two tabs
Type:           Unknown // three tabs
Status:         Unknown // three tabs
Phone_number:   Unknown // one tab

Java and Perl has this functionality in printf, but how to do this in javascript?

Answer 1

The String.prototype.padEnd(targetLength, padString) method will do the job, it is documented here. The padString parameter is set to a single-space string if omitted.

Example:

console.log(`   ${'Player'.padEnd(19)} ` +
    `${'MATCH'.padEnd(8) } ` +
    `${'SCORE'.padEnd(8) } `
);
for (const player of this.players) {
    console.log(` - ${player.name.padEnd(20)} ` +
        `${player.matches.length.toString().padEnd(8) } ` +
        `${player.score.toString().padEnd(8) } `
    );
}

Result:

   Player              MATCH    SCORE   
 - Bradly               5        15      
 - Sam                  4        9       
 - Dew                  3        5