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A: In javascript, the forEach method of an array cannot be interrupted in the normal way. It can only be interrupted by a try catch.

  • ForEach does not support break and continue, only return.

  • Using a return in forEach is equivalent to a continue in a for loop.

const arr = [1.2.3]
arr.forEach(item= > {
  if (item === 2) {
    return false // Equivalent to the continue in the for loop
  } else {
    console.log(item)
  }
})
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ForEach uses break to report an error.

// Interrupt by throwing an exception
const arr = [1.2.3]
try {
  arr.forEach(item= > {
    if (item === 2) {
      throw new Error('jump out forEach')}else {
      console.log(item)
    }
  })
} catch (err) {
  console.log(err)
}
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Don’t use forEach to break, use a for loop and break.

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