Javascript 微调 + 查找名称的精确匹配

Question

是否有内置的 JavaScript 字符串方法可以帮助我微调这段代码以确保它只找到与名称完全匹配的内容？

这是我的代码。

/*jshint multistr:true */

var text = "Sid quick brown fox jumps over the lazy dog ";
var myName = "Sid";
var hits = [];

for (var i=0; i< text.length; i++){
    if(text[i] === 'S'){
        for(var j=i; j < i + myName.length; j++){
            hits.push(text[j]);
        }
    }else{
        console.log("Your name wasn't found!")
    }

}
console.log(hits);

Answer 1

所以这是另一个解决方案，使用函数 match() ，但更简单:

/*jshint multistr:true */
var text = "Hey, how are you doing Sanda? My name is Emily.\
Nice to meet you Sada. Where does your name come from, Sana?\
is Sanda a slavic name?";
/*var myName = "Sanda";
hits = [];

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

if ( hits.length === 0 ) "Your name wasn't found!";
else console.log(hits);*/

var hits = text.match(/Sanda/g);

if ( hits.length === 0 ) "Your name wasn't found!";
else console.log(hits);

语法是 var <someVar> = <textToBeSearched>.match(/pattern/modifiers) .我的修改器g用于全局(搜索整个模式)。

更多信息在这里: http://www.w3schools.com/jsref/jsref_match.asp http://www.w3schools.com/js/js_regexp.asp

干杯!