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in_array() in javascript finds element value in array

巴扎黑
巴扎黑Original
2016-11-24 14:39:441417browse

in_array() has the same function as in_array() in php

Js code

//Find element value in array 

function in_array(v, a) {  
  var i;  
  for (i = 0; i < a.length; i++) {  
    if (v === a[i]) {  
      return i;  
    }  
  }  
  return -1;  
} // 返回-1表示没找到，返回其他值表示找到的索


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