JavaScript 用于字符串操作的方法

Contributor:筠穆穆 Type:代码 Date time:2017-12-19 17:17:29 Favorite:24 Score:0
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Collection Modify the typo
"use strict";
var str = "leaning JavaScript";
var str1 = "leaning";
var str2 = "hard";
console.log(str.charAt(2));
str.charCodeAt(4);
str.concat(str1, str2);
str.indexOf("ing");
str.lastIndexOf("ing");
str.match();
str.replace("ing", "ning");
str.search();
str.slice(2, 7);
str.split(2, 9);
str.substr(1, 5);
str.substring(1, 6);
str.toLowerCase();
str.toUpperCase();
str.valueOf();
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