使用jQuery的grep使用通配符的对象数组搜索 [英] Searching array of objects using jquery grep with wildcards

问题描述

我在寻找使用jQuery的grep对象的数组，并想在搜索中包含通配符。例如，我有一个数组如下：

I'm searching an array of objects using jquery grep and would like to include wildcards in the search. For example, I have an array as follows:

courses = [
{code: 'ENCH3TH', otherFields: otherStuff},
{code: 'ENCH3THHS1', otherFields: otherStuff},
{code: 'ENCH3TH2', otherFields: otherStuff},
{code: 'ENCH4RT', otherFields: otherStuff},
{code: 'ENCH4MT', otherFields: otherStuff}]

我想获得所有与ENCH3TH preFIX课程。我试图

I'd like to get all the courses with the ENCH3TH prefix. I have attempted

var resultSet = $.grep(courses, function(e){ return e.code == 'ENCH3TH/'; });

..无果（注意'ENCH3TH作为通配符使用后的'/'）

..to no avail (note the use of the '/' after 'ENCH3TH' as the wildcard).

推荐答案

您可以使用<一个href=\"https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf\"相对=nofollow> String.indexOf（）这里， = 将不与野生字符工作

You can use String.indexOf() here, = will not work with wild chars

var resultSet = $.grep(courses, function (e) {
    return e.code.indexOf('ENCH3TH') == 0;
});

演示：小提琴

或者使用正则表达式

var regex = /^ENCH3TH/
var resultSet = $.grep(courses, function (e) {
    return regex.test(e.code);
});

演示：小提琴

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