如何獲得邊框寬度jQuery的/ JavaScript的

Question

如何解析來自

style="border: solid 1px black;"

邊框寬度的jQuery/JavaScript的？

$elem.css('border-width')

沒有做到這一點。

注意我需要解析來自CSS的寬度，因爲元素可以是display:none

感謝

編輯我沒有實際使用的內嵌樣式，我只是寫它是因爲我沒有意識到存在任何行爲差異。它似乎雖然適用於內聯樣式，但仍然無法從應用的css類中獲取任何值。

Answer 1

你可以使用parseInt();解析邊框寬度從Npx到N：

var width = $elem.css('borderWidth'); // 150px 
var parsed = parseInt(width);   // 150 

我有一個谷歌周圍，它出現在爲了得到一個邊框的寬度您必須提供明確的邊界：

var borderWidth = $elem.css("border-left-width"); 

This i因爲每個邊框都可能有不同的尺寸，樣式和顏色。不幸的是，它似乎並沒有比這更簡單。

Answer 2

jQuery不允許在引用CSS屬性時使用-，因此請刪除hypen並大寫下面的字母。

$elem.css('borderWidth'); 

Coded in jsFiddle to demonstrate。

Answer 3

尋求他離開邊界時完成通用的答案，包括有關基數難以捉摸的評論：

<div style="border-style:solid;border-left-width:15px;"></div> 

腳本：

var width =parseInt($('div').css('borderLeftWidth'),10); 
alert(width); 

Answer 4

var bordersOnBothSides = $("#measureMe").outerWidth() - $("#measureMe").innerWidth()); 

Answer 5

獲取邊框寬度。
示例HTML元素：用上面的HTML

<div> 
    <style> .example {border: 10px solid lightblue} </style> 
    <div class="example" style="width: 10px; height: 10px;"></div> 
</div> 

---

簡單的jQuery方式：

> $(".example").css("border-width"); 
< "10px" 

---

也搜索互聯網的時候，我發現了一個解決方案
，沒有使用jQuery工作javascript庫
（我認爲Jquery可能使用類似這樣的解決方案）：
http://javascript.info/tutorial/styles-and-classes-getcomputedstyle
（JavaScript的教程，©伊利亞·坎特）

稍長非jQuery的方式使用上述HTML：

> var element = document.getElementById("test"); 
< undefined 
> var computed_style = getComputedStyle(element); 
< CSSStyleDeclaration {0: "animation-delay", 1: "animation-direction", 2: "animation-duration", 3: "animation-fill-mode", 4: "animation-iteration-count", 5: "animation-name", 6: "animation-play-state", 7: "animation-timing-function", 8: "background-attachment", 9: "background-blend-mode", 10: "background-clip", 11: "background-color", 12: "background-image", 13: "background-origin", 14: "background-position", 15: "background-repeat", 16: "background-size", 17: "border-bottom-color", 18: "border-bottom-left-radius", 19: "border-bottom-right-radius", 20: "border-bottom-style", 21: "border-bottom-width", 22: "border-collapse", 23: "border-image-outset", 24: "border-image-repeat", 25: "border-image-slice", 26: "border-image-source", 27: "border-image-width", 28: "border-left-color", 29: "border-left-style", 30: "border-left-width", 31: "border-right-color", 32: "border-right-style", 33: "border-right-width", 34: "border-top-color", 35: "border-top-left-radius", 36: "border-top-right-radius", 37: "border-top-style", 38: "border-top-width", 39: "bottom", 40: "box-shadow", 41: "box-sizing", 42: "caption-side", 43: "clear", 44: "clip", 45: "color", 46: "cursor", 47: "direction", 48: "display", 49: "empty-cells", 50: "float", 51: "font-family", 52: "font-kerning", 53: "font-size", 54: "font-stretch", 55: "font-style", 56: "font-variant", 57: "font-variant-ligatures", 58: "font-weight", 59: "height", 60: "image-rendering", 61: "isolation", 62: "left", 63: "letter-spacing", 64: "line-height", 65: "list-style-image", 66: "list-style-position", 67: "list-style-type", 68: "margin-bottom", 69: "margin-left", 70: "margin-right", 71: "margin-top", 72: "max-height", 73: "max-width", 74: "min-height", 75: "min-width", 76: "mix-blend-mode", 77: "object-fit", 78: "object-position", 79: "opacity", 80: "orphans", 81: "outline-color", 82: "outline-offset", 83: "outline-style", 84: "outline-width", 85: "overflow-wrap", 86: "overflow-x", 87: "overflow-y", 88: "padding-bottom", 89: "padding-left", 90: "padding-right", 91: "padding-top", 92: "page-break-after", 93: "page-break-before", 94: "page-break-inside", 95: "pointer-events", 96: "position", 97: "resize", 98: "right", 99: "speak"…} 
> computed_style.borderWidth; 
< "10px" 

完成！我希望任何閱讀這篇文章的人都能理解，也許會發現這很有用
此外，請參閱this jsFiddle（https://jsfiddle.net/user_e/2L8yLc7a/），它演示了我的答案。

Answer 6

如果妳有相等的邊界widh的元素，或u需要左側，頂部邊框寬度，純JS：

elem.clientLeft; //get left border of element 
elem.clientTop; //get top border of element 

爲了得到正確的，底部邊框使用jQuery + CSS：

parseInt($(elem).css('borderLeftWidth'),10); // 10 use to get result in dec, not hex number system