FormData 값들 확인하기

FormData

The FormData object lets you compile a set of key/value pairs to send using XMLHttpRequest. It is primarily intended for use in sending form data, but can be used independently from forms in order to transmit keyed data. The transmitted data is in the same format that the form's submit() method would use to send the data if the form's encoding type were set to multipart/form-data.

const data=new FormData()
data.append('k1','v1')
data.append('k2','v2')

for(const item of data.entries()){
	console.log(item)
}