从javascript数组中查找匹配的字符串 [英] Finding matching string from javascript array

问题描述

我有一个字符串数组.我需要找到所有以键开头的字符串. 例如:如果有数组['apple','ape','open','soap'] 使用关键字"ap"搜索时 我应该只得到苹果"和猿"，而不是肥皂".

I have one array of strings. I need to find all strings starting with a key. for eg: if there is an array ['apple','ape','open','soap'] when searched with a key 'ap' i should get 'apple' and 'ape' only and not 'soap'.

这是在javascript中.

This is in javascript.

推荐答案

function find(key, array) {
  // The variable results needs var in this case (without 'var' a global variable is created)
  var results = [];
  for (var i = 0; i < array.length; i++) {
    if (array[i].indexOf(key) == 0) {
      results.push(array[i]);
    }
  }
  return results;
}

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