Question

我是javascript的新手并且在某处使用以下代码犯了错误，找到字符串“Craig”并将其推入新的数组“Hits”。

var text = "Hey, how are you \ doing? My name is Emily.\ My other friends       name is Craig. My friend Craig is learning JavaScript";
var myName = "Craig"
var hits = [];

for(var i = 0; i < text.length; i++){
if(text[i]=== "C"){
    for(var j = i; j < myName.length; j++ ){
       hits.push(j); 
    }
}
}

Answer 1

您的for loop条件不正确。用下面的替换。使用j < i + myName.length

for(var j = i; j < i+myName.length; j++ )

PS： - 有更好的方法，indexOf()。

Answer 2

var text = "Hey, how are you \ doing? My name is Emily.\ My other    friends name is Craig. My friend Craig is learning JavaScript";

    var myName = "Craig"
    var hits = [];

    if (str.indexOf("Craig") > -1)
    {
       hits.push(myName);
    }

这里indexOf将返回字符串匹配的位置，如果未找到string，则indexOf返回-1

无法将某些字符串推入数组

2 个答案: