Question

如果字符串值包含指定的数值，如何检查jQuery？例如;

a= 13
c = 12

b = 'we have 13 monkeys in the Zoo"

如何检查( a in b = True)和(c in b = False)？

Answer 1

您可以使用正则表达式实现：

＆＃13;

var a = 13,
    c = 12,
    b = 'we have 13 monkeys in the Zoo';
    
if (b.match('\\b' + a + '\\b')) {
  console.log('b includes a');
}

if (b.match('\\b' + c + '\\b')) {
  console.log('b includes c');
}

＆＃13;

使用\b限制搜索来匹配整个单词，在这里＆＃34; 13＆＃34;，解决乔治指出的问题。

Answer 2

您可以使用以下代码：

var s = $.grep(b.split(' '), function(v) {
  return v == a
});

if (s.length) {
  console.log('b includes a');
}

<强>演示

var a = 13,
  c = 12,
  b = 'we have 13 monkeys in the Zoo';
d = 'we have 134 monkeys in the Zoo';

var s = $.grep(b.split(' '), function(v) {
  return v == a
});

var t = $.grep(d.split(' '), function(v) {
  return v == a
});

if (s.length) {
  console.log('b includes a');
}
if (t.length) {
  console.log('d includes a');
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

jquery如何检查字符串是否包含特定的数值

2 个答案: