Javascript JS-使用循环填充关联数组
我尝试使用循环填充JS数组,但不起作用 这是我的代码:Javascript JS-使用循环填充关联数组,javascript,Javascript,我尝试使用循环填充JS数组,但不起作用 这是我的代码: words = ["one", "two", "three", "four"]; words_formated = []; for( var i=0 ; i<words.length ; i++ ){ words_formated.push({words[i]: "<i>"+ words[i] +"</i>"}); } words=[“一”、“二”、“三”、“四”]; 单词_格式化=[]; 对于(v
words = ["one", "two", "three", "four"];
words_formated = [];
for( var i=0 ; i<words.length ; i++ ){
words_formated.push({words[i]: "<i>"+ words[i] +"</i>"});
}
words=[“一”、“二”、“三”、“四”];
单词_格式化=[];
对于(var i=0;i
而是在数组块中使用
words = ["one", "two", "three", "four"];
尝试使用数组键直接指定对象属性名称时,我还遇到了一个错误,这起到了作用:
words = ["one", "two", "three", "four"];
words_formated = [];
for( var i=0; i<words.length; i++ ){
var item = words[i]
words_formated.push({item: "<i>"+ words[i] +"</i>"});
}
words=[“一”、“二”、“三”、“四”];
单词_格式化=[];
对于(var i=0;i像数组一样使用:
words = ["one", "two", "three", "four"];
var words_formated=[];
for( var i=0 ; i<words.length ; i++ ){
words_formated[words[i]]= "<i>"+ words[i] +"</i>";
}
console.log(words_formated);
words=[“一”、“二”、“三”、“四”];
var words_formatted=[];
对于(var i=0;i当您将对象推入数组words\u格式化。push({words[i]:”“+words[i]+”“});
,关键字名称words[i]
不正确
如果你写信,问题就会解决
words\u格式化。推送({words:+words[i]+'});
如果您将word
数组正确定义为words=[“一”、“二”、“三”、“四”];
请尝试以下方法:
var words = ['one', 'two', 'three', 'four'],
words_formated = [],
item;
for (var i = 0; i < words.length; i++) {
item = {};
item[words[i]] = '<i>' + words[i] + '</i>';
words_formated.push(item);
}
失败:
var k = ['name'];
var o = { k[0]: 'value' }; // SyntaxError: Unexpected token [
通行证:
var k = ['name'];
var o = {};
o[k[0]] = 'value';
o // Object {name: "value"}
数组的语法是[…]
尝试使用words=[“一”、“二”、“三”、“四”];谢谢大家的帮助您的解决方案也很有效。非常有用您对使用数组/对象的解释。谢谢,抱歉,我没有注意到。我使用的是:code
var item=words[I]words\u formatted.push({item:+words[I]+“”)code
我认为你的解决方案是将js对象放入数组,不是吗?@bito_uuu这是我最后一次尝试。你想要哪个结果(选择一个数字):\1[{item:'one'}]
,\2[{one:'one'}]
或#3[{words:'one'}
?根据你的选择我选择[{one:'one'}]
看看这个JSFIDLE:按run测试它。它很有效……如果我尝试“字符串化”你的数组,我会收到一个空数组:警报(JSON.stringify(words_formatted));
除非我们声明words_formatted为对象-var words_formatted={};
谢谢
var a = (1, 2, 3); // a sequence of numbers (returns the last one)
a // 3
var a = [1, 2, 3]; // an array
a // [1, 2, 3]
var k = ['name'];
var o = { k[0]: 'value' }; // SyntaxError: Unexpected token [
var k = ['name'];
var o = {};
o[k[0]] = 'value';
o // Object {name: "value"}