如果输入包含数组的任何单词 [英] if input contains any word in array

问题描述

我有一个输入，我想知道是否有在我的数组中的值的存在。举个简单的例子我的阵列

I have an input and I want to know if any of the values in my array exist. For a simple example my array is

var _array = ["sun", "mon", "tue", "wed", "thu", "fri", "sat"];

我已经想通了如何触发它，如果我例如键入简单的'太阳'，但我想知道如果'hhsun'或'sunee存在过。

I've figured out how to trigger it if I type simply 'sun' for example, but I want to know if 'hhsun' or 'sunee' exist too.

$('input').keyup(function() {
    var _val = $(this).val();
    $('p').text(_val);

    var _array = ["sun", "mon", "tue", "wed", "thu", "fri", "sat"];

    if (_array.indexOf(_val) != -1) {
        $('span').text('it worked');
    } else {
        $('span').text(_array.indexOf(_val));
    } 
});

小提琴

推荐答案

检查是否 _array 的元素是文本框的文本字符串：

Check to see if an element of _array is a substring of the textbox's text:

var _array = ["sun", "mon", "tue", "wed", "thu", "fri", "sat"];

for (var i = 0; i < _array.length; i++) {
    if (_val.indexOf(_array[i]) != -1) {
        $('span').text('it worked');
        return;
    }
}

$('span').text('nothing');

演示： http://jsfiddle.net/WLacb/3/

Demo: http://jsfiddle.net/WLacb/3/

一个稍微模糊的解决办法是用正则表达式：

A slightly more obscure solution would be with regex:

if (/sun|mon|tue|wed|thu|fri|sat/ig.test(_val)) {
    $('span').text('it worked');
} else {
    $('span').text('nothing');
}

演示： http://jsfiddle.net/WLacb/9/

Demo: http://jsfiddle.net/WLacb/9/

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