Two different methods to implement js to select all and invert the checkbox_javascript skills

Two different methods are used to implement the full selection and inverse selection of the checkbox using js:

Method 1:

1: js implements the full selection function of the checkbox:

Copy code The code is as follows:

function checkAll()
{
var code_Values ​​= document.getElementsByTagName(" input");
for(i = 0;i < code_Values.length;i ){
if(code_Values[i].type == "checkbox")
{
code_Values[i ].checked = true;
}
}
}

2: js implements the checkbox anti-selection function:

Copy code The code is as follows:

function uncheckAll()
{
var code_Values ​​= document.getElementsByTagName("input");
for(i = 0;i < code_Values.length;i ){
if(code_Values[i].type == "checkbox")
{
code_Values[i].checked = false;
}
}
}