[英]HTMLCollection will log to console, but logging .count returns undefined?
What's the deal? 这是怎么回事?
var blocks = document.getElementsByClassName('code-block');
Just grabbing all my textareas. 只是抓住我所有的文本区域。
console.log(blocks);
returns a HTMLCollection with all 14 items. 返回具有所有14个项目的HTMLCollection。
console.log(blocks.count);
returns 退货
undefined
I did try setTimeout but that didn't help. 我确实尝试过setTimeout,但没有帮助。 I'm also inside a document.ready function and in the global scope. 我也在document.ready函数内部并且在全局范围内。 If it makes a difference, all my textareas are inside of a .collapsible div from Materialize.css so they are not initially visible. 如果有所不同,我的所有文本区域都位于Materialize.css的.collapsible div内,因此最初不可见。
blocks.length
哇,这是我最近一直在与Swift一起工作的原因。哈哈。
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