将比较结果分配给变量 javascript

Question

If I do that:

var importance_not_matched = {{item.this_article_importance}} <= article_importance;

It seems to work but in my IDE (Pycharm) I have errors: "Expression expected" on the "<=" and "underterminated statment" on the final ";"

I'm using flask, item.this_article_importance is an int

I solved my issue by changing to:

year_not_matched = {{item.this_article_year <= article_year}};

I don't understand why it's better yet though

Answer 1

Depending on the type of value that is {{ item.this_article_importance }} you may have to use filter |safe , so that django does not escape it.

Something like this:

var importance_not_matched = {{ item.this_article_importance|safe }} <= article_importance;

You can verify that both variables really have the desired value, even the type, to ensure where the error comes from.

var this_article_importance = {{ item.this_article_importance|safe }};
console.log(typeof(this_article_importance), this_article_importance);

It's hard to know more without more information. You can review this question where the topic is discussed.

Answer 2

I solved my issue by changing to:

year_not_matched = {{item.this_article_year <= article_year}};

I don't understand why it's better yet though