非常直截了当。在javascript中，我需要检查字符串是否包含数组中持有的任何子字符串。
当前回答
没有内置的东西可以帮你做这个，你必须为它写一个函数，尽管它可以只是一个对某些数组方法的回调。
有两种方法:
数组一些方法 正则表达式
数组的一些
数组some方法(在ES5中添加)使这非常简单:
if (substrings.some(function(v) { return str.indexOf(v) >= 0; })) {
// There's at least one
}
更好的箭头函数和newish includes方法(都是ES2015+):
if (substrings.some(v => str.includes(v))) {
// There's at least one
}
生活例子:
const substrings = ["one", "two", "three"]; let str; // Setup console.log(`Substrings: ${substrings}`); // Try it where we expect a match str = "this has one"; if (substrings.some(v => str.includes(v))) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); } // Try it where we DON'T expect a match str = "this doesn't have any"; if (substrings.some(v => str.includes(v))) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); }
正则表达式
如果你知道字符串不包含任何正则表达式中的特殊字符，那么你可以欺骗一下，像这样:
if (new RegExp(substrings.join("|")).test(string)) {
// At least one match
}
.．.这将创建一个正则表达式，它是您正在寻找的子字符串的一系列更改(例如，one|two)，并测试是否有匹配它们中的任何一个，但如果任何子字符串包含正则表达式中的任何特殊字符(*，[等)，您必须首先转义它们，您最好只做无聊的循环。有关如何逃离它们的信息，请参阅这个问题的答案。
生活例子:
const substrings = ["one", "two", "three"]; let str; // Setup console.log(`Substrings: ${substrings}`); // Try it where we expect a match str = "this has one"; if (new RegExp(substrings.join("|")).test(str)) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); } // Try it where we DON'T expect a match str = "this doesn't have any"; if (new RegExp(substrings.join("|")).test(str)) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); }
其他回答
最好的答案是: 这也是不区分大小写的
var specsFilter = [.....];
var yourString = "......";
//if found a match
if (specsFilter.some((element) => { return new RegExp(element, "ig").test(yourString) })) {
// do something
}
单线解决方案
substringsArray.some(substring=>yourBigString.includes(substring))
如果子字符串存在\不存在，则返回true\false
需要ES6支持
没有内置的东西可以帮你做这个，你必须为它写一个函数，尽管它可以只是一个对某些数组方法的回调。
有两种方法:
数组一些方法 正则表达式
数组的一些
数组some方法(在ES5中添加)使这非常简单:
if (substrings.some(function(v) { return str.indexOf(v) >= 0; })) {
// There's at least one
}
更好的箭头函数和newish includes方法(都是ES2015+):
if (substrings.some(v => str.includes(v))) {
// There's at least one
}
生活例子:
const substrings = ["one", "two", "three"]; let str; // Setup console.log(`Substrings: ${substrings}`); // Try it where we expect a match str = "this has one"; if (substrings.some(v => str.includes(v))) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); } // Try it where we DON'T expect a match str = "this doesn't have any"; if (substrings.some(v => str.includes(v))) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); }
正则表达式
如果你知道字符串不包含任何正则表达式中的特殊字符，那么你可以欺骗一下，像这样:
if (new RegExp(substrings.join("|")).test(string)) {
// At least one match
}
.．.这将创建一个正则表达式，它是您正在寻找的子字符串的一系列更改(例如，one|two)，并测试是否有匹配它们中的任何一个，但如果任何子字符串包含正则表达式中的任何特殊字符(*，[等)，您必须首先转义它们，您最好只做无聊的循环。有关如何逃离它们的信息，请参阅这个问题的答案。
生活例子:
const substrings = ["one", "two", "three"]; let str; // Setup console.log(`Substrings: ${substrings}`); // Try it where we expect a match str = "this has one"; if (new RegExp(substrings.join("|")).test(str)) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); } // Try it where we DON'T expect a match str = "this doesn't have any"; if (new RegExp(substrings.join("|")).test(str)) { console.log(`Match using "${str}"`); } else { console.log(`No match using "${str}"`); }
var yourstring = 'tasty food'; // the string to check against
var substrings = ['foo','bar'],
length = substrings.length;
while(length--) {
if (yourstring.indexOf(substrings[length])!=-1) {
// one of the substrings is in yourstring
}
}
你可以这样检查:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
var list = ["bad", "words", "include"]
var sentence = $("#comments_text").val()
$.each(list, function( index, value ) {
if (sentence.indexOf(value) > -1) {
console.log(value)
}
});
});
</script>
</head>
<body>
<input id="comments_text" value="This is a bad, with include test">
</body>
</html>
