[英]Replace all instances in string with a variable as the search - JavaScript
I am having an issue which I cannot find documented anywhere, i see a regex method however that is using a direct string rather than string within a variable. 我有一个我无法在任何地方找到的问题,我看到一个正则表达式方法,但是在变量中使用直接字符串而不是字符串。 This is my code: 这是我的代码:
var src = getQueryVariable("srcStr");
if(src != false){
$(".entry-content").html($(".entry-content")
.html().replace(/src/g, "<span style='background-color:#f2e128;'>"
+ src + "</span>"));
}
This gets a url variable (srcStr) and searches a body of text within .entry-content for the string stored in the var src
. 这将获取一个url变量(srcStr),并在.entry-content中搜索文本正文,以查找var src
存储的字符串。
The problem code is here: replace(/src/g
问题代码在这里: replace(/src/g
Is there a solution? 有解决方案吗?
You are searching for the pattern that is literally "src." 您正在搜索字面上为“src”的模式。 You need to use the RegExp
class if you want to use variables in patterns: 如果要在模式中使用变量,则需要使用RegExp
类:
pattern = new RegExp(src, 'g');
$(".entry-content")...html().replace(pattern, replacement);
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