export function forEach < T > ( target , eachFunc , inverse ? ) ; export function forEach < T > ( target , eachFunc , inverse ? ) ; export function forEach ( target , eachFunc , inverse ? ) ; export function forEach ( target , eachFunc , inverse ? ) { let length ; if ( target instanceof Array ) { length = target . length ; if ( ! inverse ) { let i = - 1 ; while ( ++ i < length ) { if ( eachFunc ( target [ i ] , i ) === false ) { break ; } } } else { let i = length ; while ( i -- ) { if ( eachFunc ( target [ i ] , i ) === false ) { break ; } } } } else if ( typeof FormData !== 'undefined' && target instanceof FormData ) { return ; } else if ( typeof File !== 'undefined' && target instanceof File ) { for ( const x in target ) { eachFunc ( target [ x ] , x ) ; } return ; } else if ( typeof target === 'object' ) { const keys = Object . keys ( target ) ; let key ; length = keys . length ; let i = - 1 ; while ( ++ i < length ) { key = keys [ i ] ; if ( eachFunc ( target [ key ] , key ) === false ) { break ; } } } }