X
點擊此處開啟此網站的行動版。

技術支援討論區

HTML5 Step Not Working As Expected

已張貼

Using step on a number input is not working as expected when the value isn't pre-populated. See this jsfiddle for testing: https://jsfiddle.net/4Lx9ksfz/

Using step on a number input is not working as expected when the value isn't pre-populated. See this jsfiddle for testing: https://jsfiddle.net/4Lx9ksfz/
引用

額外的系統細節

已安裝的外掛程式

none

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36

更多資訊

jscher2000
  • Top 10 Contributor
8637 個解決方法 70651 個答案

Which one is particular isn't working the way you expect, or works differently in different browsers?

The MDN page describing what Firefox and other browsers should do is here: https://developer.mozilla.org/docs/Web/HTML/Element/input/number#step

Which one is particular isn't working the way you expect, or works differently in different browsers? The MDN page describing what Firefox and other browsers ''should'' do is here: https://developer.mozilla.org/docs/Web/HTML/Element/input/number#step
這篇文章有幫助嗎?
引用

提出問題者

So, the ones that have a pre-populated value (the bottom ones) will perform step exactly as expected.

For step="any" when in the field and pressing the up or down arrows on the keyboard, the whole number changes and retains the decimal places. So, 12.34 with up arrow becomes 13.34 and down arrow becomes 11.34. This is the correct and expected behavior.

However, the ones that do not have pre-populated values (the top ones), once you enter a value into the step="any" field, example 12.34 and try to do an up or down arrow on it, then it changes the entire number to become a whole number of up to 13 or down to 12) It loses the decimals entirely, and this is not the correct or expected behavior.

This works as expected in browsers outside of Firefox: Chrome, Safari, Edge.

So, the ones that have a pre-populated value (the bottom ones) will perform step exactly as expected. For step="any" when in the field and pressing the up or down arrows on the keyboard, the whole number changes and retains the decimal places. So, 12.34 with up arrow becomes 13.34 and down arrow becomes 11.34. This is the correct and expected behavior. However, the ones that do '''not''' have pre-populated values (the top ones), once you enter a value into the step="any" field, example 12.34 and try to do an up or down arrow on it, then it changes the entire number to become a whole number of up to 13 or down to 12) It loses the decimals entirely, and this is not the correct or expected behavior. This works as expected in browsers outside of Firefox: Chrome, Safari, Edge.
這篇文章有幫助嗎?
引用
jscher2000
  • Top 10 Contributor
8637 個解決方法 70651 個答案

Hi NocFenix, the way I understand the article I referenced, when you use the up/down buttons on <input type="number">, only allows whole numbers are allowed unless the min or value attribute is set to a decimal number. I don't know why other browsers work differently.

Hi NocFenix, the way I understand the article I referenced, when you use the up/down buttons on &lt;input type="number">, only allows whole numbers are allowed unless the min or value attribute is set to a decimal number. I don't know why other browsers work differently.
這篇文章有幫助嗎?
引用
問個問題

如果您還沒有帳號,您必須先 登入您的帳號 來回覆文章。請 開始一個新問題