在javascript中从列表键代码中拆分字符串

可以在拆分中使用正则表达式:

// eg ,-
var separators = [44, 45];
var myText = "this, is a - test";

var regex = "[" + separators.map(function (c) { return String.fromCharCode(c); }).join("") + "]"; 

var groupedItems = myText.split(new RegExp(regex));
console.log(groupedItems);

可以使用 RegExp 对象来拆分字符串。

//assuming an object is given
const mdConstants = {
  "KEY_CODE": {
    "COMMA": ",",
    "DASH": "-",
    "DOT": "."
  }
};

//you can create separator list

const separators = Object.keys(mdConstants.KEY_CODE).map(k => '[' + mdConstants.KEY_CODE[k] + ']'); //sanitize symbols to avoid RegExp special character conflicts

//create RegExp object
const re = new RegExp(separators.join('|'));

//and use it

console.log('abc-def.ghi,jkl'.split(re));

const separators = [ 
    ",",
    "-",
    "."
];

// make regex pattern from your separators.
// pipe serves as a char separator
// double is backslash for escaping chars
let pattern = new RegExp('\\' + separators.join('|\\'), "g");

// user input
let userInput = "abc-def.efg";

// resulting array of words split by your separators
let result = userInput.split(pattern);

console.log(result);

你可以听听 onKeyDown 事件,这将给你一个事件对象。你的函数可以是这样的。

var tempWord = ""; var arrayYouWant = []; var separators = [];

function onKeyDownHandler (event) {
    var value = event.target.value;
    var keyCode = event.which || event.keyCode;
    if (separators.indexOf(keyCode) === -1) {
        tempWord += value;
    } else {
        arrayYouWant.push(tempWord);
        tempWord = "";
    }
}

您可以尝试用第一个分隔符替换所有分隔符,然后使用javascript的split函数和第一个分隔符进行拆分。

var a = 'abc-def.efg';

for (var i = 0; i<separators.length; i++){
    a = a.replace(separators[i],separators[0]);
} 

var a_split = a.split(separators[0]);

console.log(a_split);