var a = [‘a’,’b’,’c’];
var b = [‘d’,’e’,’f’];
var c = a.concat(b); //c is Now an an array with: [‘a’,’b’,’c’,’d’,’e’,’f’]
console.log( c[3] ); //c[3] will be ‘d’
JavaScript：如何连接/组合两个数组以串联成一个数组？[重复]
JavaScript：如何连接/组合两个数组以串联成一个数组？[重复]
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