JavaScript remove multiple spaces in a string

Question

Multiple consecutive spaces are causing me a headache in my JS script. I tried doing this:

const originalStr = 'Hello  there     how are  you'
const actual = originalStr.replace(/  /g, ' ')
const expected = 'Hello there how are you'

console.log(`originalStr = '${originalStr}'`)
console.log(`actual = '${actual}'`)
console.log(`expected = '${expected}'`)
console.log(`actual === expected ...`, actual === expected)

But as you can see it's not working. It's failing when there are 3 or more consecutive spaces. Is there a simple way to ensure that there are no consecutive spaces?

Andy · Accepted Answer · 2021-05-21 12:26:29Z

4

Just modify your regex slightly:

const originalStr = 'Hello  there     how are  you'
const actual = originalStr.replace(/ +/g, ' ')
const expected = 'Hello there how are you'

console.log(`originalStr = '${originalStr}'`)
console.log(`actual = '${actual}'`)
console.log(`expected = '${expected}'`)
console.log(`actual === expected ...`, actual === expected)

answered May 21, 2021 at 12:26

Andy

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1 Comment

danday74 Over a year ago

thanks so much - i was thinking id be stuck with a loop - much appreciated :)

crg · Accepted Answer · 2021-05-21 12:27:00Z

1

Edit your regex with / +/g

const originalStr = 'Hello  there     how are  you'
const actual = originalStr.replace(/ +/g, ' ')
const expected = 'Hello there how are you'
console.log(`originalStr = '${originalStr}'`)
console.log(`actual = '${actual}'`)
console.log(`expected = '${expected}'`)
console.log(`actual === expected ...`, actual === expected)

answered May 21, 2021 at 12:27

crg

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