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function isObject (value) {
return value === Object(value)
}
function isArray (value) {
return Array.isArray(value)
}
function isFile (value) {
return value instanceof File
}
function makeArrayKey (key) {
return key
}
function objectToFormData (obj, fd, pre) {
fd = fd || new FormData()
Object.keys(obj).forEach(function (prop) {
var key = pre ? (pre + '[' + prop + ']') : prop
if (isObject(obj[prop]) && !isArray(obj[prop]) && !isFile(obj[prop])) {
objectToFormData(obj[prop], fd, key)
} else if (isArray(obj[prop])) {
obj[prop].forEach(function (value) {
var arrayKey = makeArrayKey(key)
if (isObject(value) && !isFile(value)) {
objectToFormData(value, fd, arrayKey)
} else {
fd.append(arrayKey, value)
}
})
} else {
if(obj[prop]!=null) fd.append(key, obj[prop])
}
})
return fd
}
export default objectToFormData