Question

我正在尝试替换JSON对象中的字符串。我的JSON对象如下所示：

{
    "type":         "text",
    "timeTrigger":  34,
    "title":        "Sherlock Holmes",
    "subtitle":     "Detective",
    "picture":      "images/content/placehold.png",
    "intro":        "Sherlock Holmes is a fictional detective created by British author Sir Arthur Conan Doyle. [gallery] Holmes is known for his astute logical reasoning..."
            },

我想要替换的是图像对象的标记[gallery]。

我试过了：

var mystring = data.text;
mystring.replace('[gallery]' , 'replaced!');

而且：

var stringified = JSON.stringify(json);
stringified = stringified.replace('"[gallery]": "replaced"');

两者都会导致没有任何改变。最后一个，我想只是在你想要更改密钥时使用＆gt; JSON中的值，但我只想过滤掉gallery标签并将其替换为图像。因此，输出会将[gallery]替换为图像对象。

欢迎任何建议和代码。提前谢谢。

更新

下面的脚本将使用新的东西替换包含[gallery]的data.text，但这仅适用于console.log，而不适用于页面上的相同文本..

var mystring = data.text;
console.log(mystring.replace('[gallery]', '=========dsiuhfodsa========='));

Answer 1

使用.replace()函数并在第二个正斜杠贪婪g之后使用带有这些特殊字符的正则表达式，它匹配所有出现的术语[gallery]和i不区分大小写，另外不要忘记使用反斜杠转义[和]以匹配它们。

JS Fiddle

var div = document.getElementById('intro'),
	data = {
    		"type"		:	"text",
    		"timeTrigger":  34,
    		"title"		:	"Sherlock Holmes",
    		"subtitle"	:	"Detective",
    		"picture"	:	"images/content/placehold.png",
    		"intro"		:	"Sherlock Holmes is a fictional detective created by British author Sir Arthur Conan Doyle. [gallery] Holmes is known for his astute logical reasoning..."
            };
var intro = data['intro'];
div.innerHTML = intro.replace(/\[gallery\]/ig, '<img src="//placehold.it/100x100?image">');

<div id="intro"></div>

如何替换JSON对象输出中的字符串？

1 个答案: