Is json equal to javascript?

json is not javascript; json is a lightweight data exchange format, and javascript is a lightweight, interpreted or just-in-time compiled programming language with function priority; the json format is derived from JavaScript Object, which is a subset of JavaScript.

The operating environment of this article: windows7 system, javascript version 1.8.5, Dell G3 computer.

Is json just javascript?

json is not javascript.

JSON (JavaScript Object Notation) is a lightweight data exchange format. JSON format data is mainly used for cross-platform exchange of data. JavaScript ("JS" for short) is a lightweight, interpreted or just-in-time compiled programming language with function priority.

But JSON and JavaScript do have origins. It can be said that this data format evolved from JavaScript objects and is a subset of JavaScript. JSON itself means JavaScript Object Notation, which uses strict JavaScript object notation to represent structured data.

It is a strict js object format. The attribute name of JSON must have double quotes. If the value is a string, it must also be double quotes;

JSON is just a data format (or data format), the data format is actually a specification. Format, form, and specification cannot be used to store data. We cannot call the following objects JSON, for example:

<script>
var obj2={};//这只是JS对象
var obj3={width:100,height:200};/*这跟JSON就更不沾边了,只是JS的 对象 */
var obj4={&#39;width&#39;:100,&#39;height&#39;:200};/*这跟JSON就更不沾边了,只是JS的对象 */
var obj5={"width":100,"height":200,"name":"rose"}; /*我们可以把这个称做：JSON格式的JavaScript对象 */
var str1=&#39;{"width":100,"height":200,"name":"rose"}&#39;;/*我们可以把这个称做：JSON格式的字符串 */
var a=[
                {"width":100,"height":200,"name":"rose"},
                {"width":100,"height":200,"name":"rose"},
                {"width":100,"height":200,"name":"rose"},
        ];
        /*这个叫JSON格式的数组，是JSON的稍复杂一点的形式 */
var str2=&#39;[&#39;+
                &#39;{"width":100,"height":200,"name":"rose"},&#39;+
                &#39;{"width":100,"height":200,"name":"rose"},&#39;+
                &#39;{"width":100,"height":200,"name":"rose"},&#39;+
        &#39;]&#39; ;
        /* 这个叫稍复杂一点的JSON格式的字符串 */
</script>

Recommended learning: "javascript basic tutorial"

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