JS Set Select All and select all issues

First, add an onclick click event to the Large check box, and then write the name of the function with one parameter (this.checked), which represents the current value, and then the actual creation of a function is directly connected with a variable .

function chackall(result) {

var Arr=$("LEFTTABCB")//Gets a collection of check boxes of the same name

for (vari=0; I<arr. Length; I+ +) {

Arr[i]. Checked=result//Then let the value of the check box in all collections be the same as the value passed in

}

}

JS Set Select All and select all issues