Function isAllSelected

ServerEditorWeb/ace/ace.js:1985–1987

(text)

    var isAllSelected = function(text) {
        return text.selectionStart === 0 && text.selectionEnd === text.value.length;
    };
    if (!text.setSelectionRange && text.createTextRange) {
        text.setSelectionRange = function(selectionStart, selectionEnd) {
            var range = this.createTextRange();