i try to install eosjs with npm ,, igot some error

npm WARN deprecated text-encoding@0.7.0: no longer maintained
npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.

core-js@2.6.11 postinstall /home/node_modules/core-js
node -e "try{require('./postinstall')}catch(e){}"