字符串拼接

Posted 2020-12-31 benbenjia

控制台中：字符串：红色；变量：白色

js中

js中jss

self.DocPaiBanDictArry.push({ TAST_NAME: item.TAST_NAME, style:"width:calc(100% / "+len+")"});

html中

<tr data-bind="foreach:$root.DocPaiBanDictArry">
<th data-bind="html: TAST_NAME, attr: { style: style }"></th><!--style="width: calc(100% / 7)" -->
</tr>

打印

 

var a="abc";var c="abcd";a+"abc"+c
"abcabcabcd"
var a="abc";var c="abcd";a+"‘abc‘"+c
"abc‘abc‘abcd"
var a="abc";var c="abcd";a+‘"abc"‘+c
"abc"abc"abcd"

 

var a="abc";var c="abcd";a+abc+c
VM9876:1 Uncaught ReferenceError: abc is not defined
at <anonymous>:1:28

 

 

 

var len = ‘fff‘;"width:calc(100% / ‘"+len+"‘)"
"width:calc(100% / ‘fff‘)"
var len = 10;"width:calc(100% / ‘"+len+"‘)"
"width:calc(100% / ‘10‘)"
var len = 10;‘width:calc(100% / "+len+")‘
"width:calc(100% / "+len+")"
var len = 10;‘width:calc(100% / "+len+")‘
"width:calc(100% / "+len+")"
var str = ‘fdsafdsa‘; var str2 = ‘fdsafdsa‘; var len = 10; str + len + str2
"fdsafdsa10fdsafdsa"
var str = ‘fdsafdsa‘; var str2 = ‘fdsafdsa‘; var len = 10; str + len + str2
"fdsafdsa10fdsafdsa"
‘fdsafdsafd"fdsafdsafdsafdas":safdsfsa‘
"fdsafdsafd"fdsafdsafdsafdas":safdsfsa"
var str = "fdsafdsafd";var str2 = fdsafdsafdsafdas; var str3 = ":safdsfsa";str+str2+str3
VM710:1 Uncaught ReferenceError: fdsafdsafdsafdas is not defined
at <anonymous>:1:35
(anonymous) @ VM710:1
var a ="fdfa";
undefined
var len = 10; "width:calc(100% / ‘"+len+"‘)"
"width:calc(100% / ‘10‘)"
"width:calc(100% / ‘"+10+"‘)"
"width:calc(100% / ‘10‘)"
"width:calc(100% / ‘len‘"
"width:calc(100% / ‘len‘"
"width:calc(100% / " + len
"width:calc(100% / 10"