在javascript中使用splice从数组中删除所有元素

我试图用字符串索引从我的数组中删除一个特定的元素,但我的所有元素都被删除

var myArray = new Array();

myArray['abc'] = 'abc';
myArray['cde'] = 'cde';
myArray['efg'] = 'efg';

console.log('before splice:');
console.log(myArray);

myArray = myArray.splice('abc',1);
console.log('after splice:');
console.log(myArray);


before splice:
[abc: "abc", cde: "cde", efg: "efg"]
after splice:
[]

doc在此链接上找到[1]:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice

没有明确说明索引必须是整数还是其他任何东西

你想要的不是数组而是对象.

var myObj = {};

myObj['abc'] = 'abc';
myObj['cde'] = 'cde';
myObj['efg'] = 'efg';

// and you can then

delete myObj['abc'];

数组只能有整数索引.

var myArray = new Array();

myArray[0] = 'abc';
myArray[1] = 'cde';
myArray[2] = 'efg';

console.log('before splice:');
console.log(myArray);

myArray.splice(myArray.indexOf('abc'),1);
console.log('after splice:');
console.log(myArray);