Javascript template string

Question

I need to create some substrings using the template string. I try to use this code but I have some problem about the auto filling of the template.

        Object.keys(optionsParams).forEach(function (key) {
            let template = '&${key}=${value}';
            let value = optionsParams[key];
            url += template;
        });

key and value variables are not found. What's the problem?

You aren't using a template literal, and you tried to use `value` before you defined it. Also consider using `Object.entries` instead, to get both the key and value at once — CertainPerformance, Jun 15 '19 at 12:40
check out `var search = Object.entries(optionsParams).map(([key,value]) => \`${encodeUriComponent(key)}=${encodeUriComponent(value)}\`).join("&")` — Thomas, Jun 15 '19 at 12:46

score 0 · Accepted Answer · edited Jun 15 '19 at 12:52

0

To use template strings you need to use backticks ` instead of single or double quotes. Try the following code instead

Object.keys(optionsParams).forEach(function (key) {
    let value = optionsParams[key];
    let template = `&${key}=${value}`
    url += template;
});

edited Jun 15 '19 at 12:52

Thomas

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answered Jun 15 '19 at 12:42

Jeremy Berchtold

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Javascript template string

1 Answers1