simple-helpers.js
Version:
简洁高效的现代JavaScript函数库
2 lines (1 loc) • 315 B
JavaScript
function n(n){if(Array.isArray(n))return n[0]}function r(n){if(Array.isArray(n)&&n.length)return n[n.length-1]}function t(n,r){return n.findIndex((function(n){return n===r}))}function e(n,r,t){return n.findIndex((function(n){return Reflect.get(n,r)===t}))}export{t as getIndex,e as getIndexBy,n as head,r as last};