将数组从EJS传递到Javascript [英] passing an array from EJS to Javascript

问题描述

我正在尝试将数组从ejs传递到JavaScript.我可以获取ejs中的值，但不能从JavaScript中获取值.我一直都不确定，因为变量"test"的内容是字符串而不是数组.

I am trying to passe an array from ejs to JavaScript. I can get to the values inside ejs but not from JavaScript. all the time i get undefined because the contents of the variable "test" is a string is not an array.

<script>

var test = '<%- level_tab %>';
alert(test);

function level(s1,s2){
            var s1 = document.getElementById(s1);
            var s2 = document.getElementById(s2);
            s2.innerHTML = "";
            if(s1.value == "level_0"){
                var optionArray = test;
            }
            else if(s1.value == "level_1"){
                var optionArray = ["test|test01", "test0|test02"];
            }
 for(var option in optionArray){
                var pair = optionArray[option].split("|");
                var newOption = document.createElement("option");
                newOption.value = pair[0];
                newOption.innerHTML = pair[1];
                s2.options.add(newOption);
            }
        }
</script>

推荐答案

您必须对数组进行字符串化

You have to stringify the array

var test = <%- JSON.stringify(level_tab) %>;

我不熟悉EJS，但是即使EJS的语法略有不同，通常也应遵循相同的原理.

I'm not familiar with EJS but in general the same principle should apply even if syntax is slightly different in EJS.

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